662664525 has 48 divisors (see below), whose sum is σ = 1135308288. Its totient is φ = 340704000.

The previous prime is 662664511. The next prime is 662664547. The reversal of 662664525 is 525466266.

It is not a de Polignac number, because 662664525 - 2⁵ = 662664493 is a prime.

It is a congruent 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, 978487 + ... + 979163.

It is an arithmetic number, because the mean of its divisors is an integer number (23652256).

Almost surely, 2^662664525 is an apocalyptic number.

It is an amenable number.

662664525 is a deficient number, since it is larger than the sum of its proper divisors (472643763).

662664525 is a wasteful number, since it uses less digits than its factorization.

662664525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1137 counting only the distinct ones).

The product of its digits is 518400, while the sum is 42.

The square root of 662664525 is about 25742.2711701979. The cubic root of 662664525 is about 871.8288585697.

The spelling of 662664525 in words is "six hundred sixty-two million, six hundred sixty-four thousand, five hundred twenty-five".