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55881010224 = 243213107278981
BaseRepresentation
bin110100000010110001…
…001000110000110000
312100020102222110000100
4310002301020300300
51403421014311344
641401003552400
74015532515104
oct640261106060
9170212873010
1055881010224
1121776412086
12a9b652b700
1353672a6630
1429c1807904
1516c0d26569
hexd02c48c30

55881010224 has 120 divisors (see below), whose sum is σ = 169993775952. Its totient is φ = 17033402880.

The previous prime is 55881010187. The next prime is 55881010249. The reversal of 55881010224 is 42201018855.

55881010224 is a `hidden beast` number, since 558 + 81 + 0 + 1 + 0 + 2 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60814 + ... + 339794.

Almost surely, 255881010224 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55881010224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84996887976).

55881010224 is an abundant number, since it is smaller than the sum of its proper divisors (114112765728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55881010224 is a wasteful number, since it uses less digits than its factorization.

55881010224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279115 (or 279106 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 36.

The spelling of 55881010224 in words is "fifty-five billion, eight hundred eighty-one million, ten thousand, two hundred twenty-four".

Divisors: 1 2 3 4 6 8 9 12 13 16 18 24 26 36 39 48 52 72 78 104 107 117 144 156 208 214 234 312 321 428 468 624 642 856 936 963 1284 1391 1712 1872 1926 2568 2782 3852 4173 5136 5564 7704 8346 11128 12519 15408 16692 22256 25038 33384 50076 66768 100152 200304 278981 557962 836943 1115924 1673886 2231848 2510829 3347772 3626753 4463696 5021658 6695544 7253506 10043316 10880259 13391088 14507012 20086632 21760518 29014024 29850967 32640777 40173264 43521036 58028048 59701934 65281554 87042072 89552901 119403868 130563108 174084144 179105802 238807736 261126216 268658703 358211604 388062571 477615472 522252432 537317406 716423208 776125142 1074634812 1164187713 1432846416 1552250284 2149269624 2328375426 3104500568 3492563139 4298539248 4656750852 6209001136 6985126278 9313501704 13970252556 18627003408 27940505112 55881010224