1056431500 has 24 divisors (see below), whose sum is σ = 2307247488. Its totient is φ = 422572400.

The previous prime is 1056431477. The next prime is 1056431501. The reversal of 1056431500 is 51346501.

It is a super-2 number, since 2×1056431500² = 2232095028384500000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (1056431501) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055932 + ... + 1056931.

It is an arithmetic number, because the mean of its divisors is an integer number (96135312).

Almost surely, 2^1056431500 is an apocalyptic number.

1056431500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1056431500 is an abundant number, since it is smaller than the sum of its proper divisors (1250815988).

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

1056431500 is a wasteful number, since it uses less digits than its factorization.

1056431500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112882 (or 2112870 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 1056431500 is about 32502.7921877490. The cubic root of 1056431500 is about 1018.4673573241.

The spelling of 1056431500 in words is "one billion, fifty-six million, four hundred thirty-one thousand, five hundred".