652585057 has 16 divisors (see below), whose sum is σ = 688418640. Its totient is φ = 617766912.

The previous prime is 652585019. The next prime is 652585067. The reversal of 652585057 is 750585256.

It can be written as a sum of positive squares in 8 ways, for example, as 69072721 + 583512336 = 8311^2 + 24156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-652585057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652585067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316843 + ... + 318895.

It is an arithmetic number, because the mean of its divisors is an integer number (43026165).

Almost surely, 2^652585057 is an apocalyptic number.

It is an amenable number.

652585057 is a deficient number, since it is larger than the sum of its proper divisors (35833583).

652585057 is a wasteful number, since it uses less digits than its factorization.

652585057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2292.

The product of its (nonzero) digits is 420000, while the sum is 43.

The square root of 652585057 is about 25545.7444009761. The cubic root of 652585057 is about 867.3859337824.

The spelling of 652585057 in words is "six hundred fifty-two million, five hundred eighty-five thousand, fifty-seven".