56556357 has 24 divisors (see below), whose sum is σ = 89087328. Its totient is φ = 31636800.

The previous prime is 56556347. The next prime is 56556361. The reversal of 56556357 is 75365565.

It is a happy number.

It is not a de Polignac number, because 56556357 - 2⁴ = 56556341 is a prime.

It is a super-2 number, since 2×56556357² = 6397243034222898, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56556317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 507 + ... + 10647.

It is an arithmetic number, because the mean of its divisors is an integer number (3711972).

Almost surely, 2^56556357 is an apocalyptic number.

It is an amenable number.

56556357 is a deficient number, since it is larger than the sum of its proper divisors (32530971).

56556357 is a wasteful number, since it uses less digits than its factorization.

56556357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10181 (or 10168 counting only the distinct ones).

The product of its digits is 472500, while the sum is 42.

The square root of 56556357 is about 7520.3960666976. The cubic root of 56556357 is about 383.8490549855.

The spelling of 56556357 in words is "fifty-six million, five hundred fifty-six thousand, three hundred fifty-seven".