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55979504637 = 372665690697
BaseRepresentation
bin110100001000101000…
…110111001111111101
312100111022022110221120
4310020220313033331
51404121223122022
641414443021153
74021136636610
oct641050671775
9170438273846
1055979504637
1121816a75421
12aa2350a7b9
135381810a54
1429d0926177
1516c97ced5c
hexd08a373fd

55979504637 has 8 divisors (see below), whose sum is σ = 85302102336. Its totient is φ = 31988288352.

The previous prime is 55979504597. The next prime is 55979504641. The reversal of 55979504637 is 73640597955.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55979504637 - 26 = 55979504573 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55979503637) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1332845328 + ... + 1332845369.

It is an arithmetic number, because the mean of its divisors is an integer number (10662762792).

Almost surely, 255979504637 is an apocalyptic number.

It is an amenable number.

55979504637 is a deficient number, since it is larger than the sum of its proper divisors (29322597699).

55979504637 is a wasteful number, since it uses less digits than its factorization.

55979504637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2665690707.

The product of its (nonzero) digits is 35721000, while the sum is 60.

The spelling of 55979504637 in words is "fifty-five billion, nine hundred seventy-nine million, five hundred four thousand, six hundred thirty-seven".

Divisors: 1 3 7 21 2665690697 7997072091 18659834879 55979504637