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55816268452 = 22737191311907
BaseRepresentation
bin110011111110111010…
…001010101010100100
312100001221011012222221
4303332322022222210
51403302431042302
641350332202124
74014115311430
oct637672125244
9170057135887
1055816268452
112174291268a
12a998909344
135356a592a9
1429b6d939c0
1516ba2d8937
hexcfee8aaa4

55816268452 has 96 divisors (see below), whose sum is σ = 115747946496. Its totient is φ = 23052988800.

The previous prime is 55816268429. The next prime is 55816268467. The reversal of 55816268452 is 25486261855.

It is a self number, because there is not a number n which added to its sum of digits gives 55816268452.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 61538983 + ... + 61539889.

It is an arithmetic number, because the mean of its divisors is an integer number (1205707776).

Almost surely, 255816268452 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 55816268452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57873973248).

55816268452 is an abundant number, since it is smaller than the sum of its proper divisors (59931678044).

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

55816268452 is a wasteful number, since it uses less digits than its factorization.

55816268452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457 (or 1455 counting only the distinct ones).

The product of its digits is 4608000, while the sum is 52.

The spelling of 55816268452 in words is "fifty-five billion, eight hundred sixteen million, two hundred sixty-eight thousand, four hundred fifty-two".

Divisors: 1 2 4 7 14 28 37 74 148 191 259 311 382 518 622 764 907 1036 1244 1337 1814 2177 2674 3628 4354 5348 6349 7067 8708 11507 12698 14134 23014 25396 28268 33559 46028 49469 59401 67118 80549 98938 118802 134236 161098 173237 197876 234913 237604 282077 322196 346474 415807 469826 564154 692948 831614 939652 1128308 1212659 1663228 1974539 2197837 2425318 3949078 4395674 4850636 6409769 7898156 8791348 10436849 12819538 15384859 20873698 25639076 30769718 41747396 44868383 53876707 61539436 73057943 89736766 107753414 146115886 179473532 215506828 292231772 377136949 754273898 1508547796 1993438159 3986876318 7973752636 13954067113 27908134226 55816268452