10556557 has 16 divisors (see below), whose sum is σ = 11975040. Its totient is φ = 9222400.

The previous prime is 10556549. The next prime is 10556569. The reversal of 10556557 is 75565501.

It is not a de Polignac number, because 10556557 - 2³ = 10556549 is a prime.

It is a super-2 number, since 2×10556557² = 222881791388498, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10556527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40008 + ... + 40270.

It is an arithmetic number, because the mean of its divisors is an integer number (748440).

Almost surely, 2^10556557 is an apocalyptic number.

It is an amenable number.

10556557 is a deficient number, since it is larger than the sum of its proper divisors (1418483).

10556557 is a wasteful number, since it uses less digits than its factorization.

10556557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404.

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 10556557 is about 3249.0855636625. The cubic root of 10556557 is about 219.3684158326.

The spelling of 10556557 in words is "ten million, five hundred fifty-six thousand, five hundred fifty-seven".