1055500556 has 96 divisors (see below), whose sum is σ = 2210955264. Its totient is φ = 435456000.

The previous prime is 1055500543. The next prime is 1055500561. The reversal of 1055500556 is 6550055501.

It is a super-2 number, since 2×1055500556² = 2228162847432618272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3894701 + ... + 3894971.

It is an arithmetic number, because the mean of its divisors is an integer number (23030784).

Almost surely, 2^1055500556 is an apocalyptic number.

It is an amenable number.

1055500556 is an abundant number, since it is smaller than the sum of its proper divisors (1155454708).

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

1055500556 is a wasteful number, since it uses less digits than its factorization.

1055500556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471 (or 469 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 32.

The square root of 1055500556 is about 32488.4680463699. The cubic root of 1055500556 is about 1018.1681062712.

Subtracting 1055500556 from its reverse (6550055501), we obtain a palindrome (5494554945).

The spelling of 1055500556 in words is "one billion, fifty-five million, five hundred thousand, five hundred fifty-six".