656053504 has 36 divisors (see below), whose sum is σ = 1334280276. Its totient is φ = 321830912.

The previous prime is 656053501. The next prime is 656053547. The reversal of 656053504 is 405350656.

It can be written as a sum of positive squares in 2 ways, for example, as 221414400 + 434639104 = 14880^2 + 20848^2 .

It is a super-2 number, since 2×656053504² = 860812400221356032, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 656053504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656053501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10609 + ... + 37744.

It is an arithmetic number, because the mean of its divisors is an integer number (37063341).

Almost surely, 2^656053504 is an apocalyptic number.

656053504 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

656053504 is an abundant number, since it is smaller than the sum of its proper divisors (678226772).

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

656053504 is an equidigital number, since it uses as much as digits as its factorization.

656053504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48422 (or 48408 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 34.

The square root of 656053504 is about 25613.5414185544. The cubic root of 656053504 is about 868.9199191881.

The spelling of 656053504 in words is "six hundred fifty-six million, fifty-three thousand, five hundred four".