1056556512 has 108 divisors (see below), whose sum is σ = 3302666640. Its totient is φ = 320158080.

The previous prime is 1056556493. The next prime is 1056556531. The reversal of 1056556512 is 2156556501.

1056556512 is a `hidden beast` number, since 1 + 0 + 56 + 556 + 51 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (1056556493) and next prime (1056556531).

It is a super-2 number, since 2×1056556512² = 2232623326099212288, which contains 22 as substring.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 19689 + ... + 50007.

Almost surely, 2^1056556512 is an apocalyptic number.

1056556512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1056556512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1651333320).

1056556512 is an abundant number, since it is smaller than the sum of its proper divisors (2246110128).

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

1056556512 is a wasteful number, since it uses less digits than its factorization.

1056556512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30357 (or 30335 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 36.

The square root of 1056556512 is about 32504.7152271790. The cubic root of 1056556512 is about 1018.5075289204.

The spelling of 1056556512 in words is "one billion, fifty-six million, five hundred fifty-six thousand, five hundred twelve".