52664446625 has 48 divisors (see below), whose sum is σ = 80953443792. Its totient is φ = 33988416000.

The previous prime is 52664446619. The next prime is 52664446663.

52664446625 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 790284544 + 51874162081 = 28112^2 + 227759^2 .

It is not a de Polignac number, because 52664446625 - 2⁴ = 52664446609 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 148766 + ... + 357015.

It is an arithmetic number, because the mean of its divisors is an integer number (1686530079).

Almost surely, 2^52664446625 is an apocalyptic number.

It is an amenable number.

52664446625 is a deficient number, since it is larger than the sum of its proper divisors (28288997167).

52664446625 is a wasteful number, since it uses less digits than its factorization.

52664446625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505827 (or 505810 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 50.

The spelling of 52664446625 in words is "fifty-two billion, six hundred sixty-four million, four hundred forty-six thousand, six hundred twenty-five".