656052057 has 24 divisors (see below), whose sum is σ = 955930248. Its totient is φ = 433555200.

The previous prime is 656052053. The next prime is 656052079. The reversal of 656052057 is 750250656.

It can be written as a sum of positive squares in 4 ways, for example, as 65999376 + 590052681 = 8124^2 + 24291^2 .

It is not a de Polignac number, because 656052057 - 2² = 656052053 is a prime.

It is not an unprimeable number, because it can be changed into a prime (656052053) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 848323 + ... + 849095.

It is an arithmetic number, because the mean of its divisors is an integer number (39830427).

Almost surely, 2^656052057 is an apocalyptic number.

It is an amenable number.

656052057 is a deficient number, since it is larger than the sum of its proper divisors (299878191).

656052057 is a wasteful number, since it uses less digits than its factorization.

656052057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1481 (or 1478 counting only the distinct ones).

The product of its (nonzero) digits is 63000, while the sum is 36.

The square root of 656052057 is about 25613.5131717615. The cubic root of 656052057 is about 868.9192803540.

The spelling of 656052057 in words is "six hundred fifty-six million, fifty-two thousand, fifty-seven".