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56626505 = 513871177
BaseRepresentation
bin1101100000000…
…0110101001001
310221112220221222
43120000311021
5103444022010
65341411425
71255213565
oct330006511
9127486858
1056626505
1129a67371
1216b69b75
13b968610
1477406a5
154e88355
hex3600d49

56626505 has 8 divisors (see below), whose sum is σ = 73178952. Its totient is φ = 41816448.

The previous prime is 56626499. The next prime is 56626513. The reversal of 56626505 is 50562665.

It can be written as a sum of positive squares in 4 ways, for example, as 30976 + 56595529 = 176^2 + 7523^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 56626505 - 212 = 56622409 is a prime.

It is a super-2 number, since 2×566265052 = 6413122137030050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 435524 + ... + 435653.

It is an arithmetic number, because the mean of its divisors is an integer number (9147369).

Almost surely, 256626505 is an apocalyptic number.

It is an amenable number.

56626505 is a deficient number, since it is larger than the sum of its proper divisors (16552447).

56626505 is a wasteful number, since it uses less digits than its factorization.

56626505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871195.

The product of its (nonzero) digits is 54000, while the sum is 35.

The square root of 56626505 is about 7525.0584715336. The cubic root of 56626505 is about 384.0076880152.

It can be divided in two parts, 5662 and 6505, that added together give a cube (12167 = 233).

The spelling of 56626505 in words is "fifty-six million, six hundred twenty-six thousand, five hundred five".

Divisors: 1 5 13 65 871177 4355885 11325301 56626505