1056563790 has 32 divisors (see below), whose sum is σ = 2536617600. Its totient is φ = 281654304.

The previous prime is 1056563773. The next prime is 1056563813. The reversal of 1056563790 is 973656501.

It is a happy number.

It is a super-2 number, since 2×1056563790² = 2232654084678328200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 149517 + ... + 156423.

It is an arithmetic number, because the mean of its divisors is an integer number (79269300).

Almost surely, 2^1056563790 is an apocalyptic number.

1056563790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1056563790 is an abundant number, since it is smaller than the sum of its proper divisors (1480053810).

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

1056563790 is a wasteful number, since it uses less digits than its factorization.

1056563790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12016.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 1056563790 is about 32504.8271799744. The cubic root of 1056563790 is about 1018.5098675493.

The spelling of 1056563790 in words is "one billion, fifty-six million, five hundred sixty-three thousand, seven hundred ninety".