1055312556 has 24 divisors (see below), whose sum is σ = 2462921664. Its totient is φ = 351695760.

The previous prime is 1055312549. The next prime is 1055312563. The reversal of 1055312556 is 6552135501.

It is an interprime number because it is at equal distance from previous prime (1055312549) and next prime (1055312563).

It is a super-2 number, since 2×1055312556² = 2227369181702506272, which contains 22 as substring.

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, 102751 + ... + 112553.

It is an arithmetic number, because the mean of its divisors is an integer number (102621736).

Almost surely, 2^1055312556 is an apocalyptic number.

It is an amenable number.

1055312556 is an abundant number, since it is smaller than the sum of its proper divisors (1407609108).

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

1055312556 is a wasteful number, since it uses less digits than its factorization.

1055312556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18781 (or 18779 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 1055312556 is about 32485.5745831900. The cubic root of 1055312556 is about 1018.1076524992.

The spelling of 1055312556 in words is "one billion, fifty-five million, three hundred twelve thousand, five hundred fifty-six".