10556506520 has 32 divisors (see below), whose sum is σ = 27145303200. Its totient is φ = 3619373568.

The previous prime is 10556506483. The next prime is 10556506549. The reversal of 10556506520 is 2560565501.

It is a super-2 number, since 2×10556506520² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a congruent 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, 18850625 + ... + 18851184.

It is an arithmetic number, because the mean of its divisors is an integer number (848290725).

Almost surely, 2^10556506520 is an apocalyptic number.

10556506520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10556506520 is an abundant number, since it is smaller than the sum of its proper divisors (16588796680).

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

10556506520 is a wasteful number, since it uses less digits than its factorization.

10556506520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37701827 (or 37701823 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 35.

The spelling of 10556506520 in words is "ten billion, five hundred fifty-six million, five hundred six thousand, five hundred twenty".