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55421952 = 210318041
BaseRepresentation
bin1101001101101…
…0110000000000
310212021201121220
43103122300000
5103142000302
65255515040
71242036015
oct323326000
9125251556
1055421952
1129314373
1216688a80
13b636271
14750970c
154ceb4bc
hex34dac00

55421952 has 44 divisors (see below), whose sum is σ = 147727896. Its totient is φ = 18472960.

The previous prime is 55421923. The next prime is 55421953. The reversal of 55421952 is 25912455.

It is not an unprimeable number, because it can be changed into a prime (55421953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5949 + ... + 12092.

Almost surely, 255421952 is an apocalyptic number.

It is an amenable number.

55421952 is an abundant number, since it is smaller than the sum of its proper divisors (92305944).

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

55421952 is a wasteful number, since it uses less digits than its factorization.

55421952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18064 (or 18046 counting only the distinct ones).

The product of its digits is 18000, while the sum is 33.

The square root of 55421952 is about 7444.5921312050. The cubic root of 55421952 is about 381.2652928740.

The spelling of 55421952 in words is "fifty-five million, four hundred twenty-one thousand, nine hundred fifty-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 64 96 128 192 256 384 512 768 1024 1536 3072 18041 36082 54123 72164 108246 144328 216492 288656 432984 577312 865968 1154624 1731936 2309248 3463872 4618496 6927744 9236992 13855488 18473984 27710976 55421952