656957052 has 36 divisors (see below), whose sum is σ = 1705527096. Its totient is φ = 213066720.

The previous prime is 656957051. The next prime is 656957111. The reversal of 656957052 is 250759656.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 656956989 and 656957007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656957051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 245274 + ... + 247937.

Almost surely, 2^656957052 is an apocalyptic number.

It is an amenable number.

656957052 is an abundant number, since it is smaller than the sum of its proper divisors (1048570044).

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

656957052 is a wasteful number, since it uses less digits than its factorization.

656957052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493258 (or 493253 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The square root of 656957052 is about 25631.1734417291. The cubic root of 656957052 is about 869.3186421049.

The spelling of 656957052 in words is "six hundred fifty-six million, nine hundred fifty-seven thousand, fifty-two".