64692025 has 24 divisors (see below), whose sum is σ = 83030400. Its totient is φ = 49972800.

The previous prime is 64691999. The next prime is 64692037. The reversal of 64692025 is 52029646.

It is not a de Polignac number, because 64692025 - 2⁵ = 64691993 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 89616 + ... + 90334.

It is an arithmetic number, because the mean of its divisors is an integer number (3459600).

Almost surely, 2^64692025 is an apocalyptic number.

It is an amenable number.

64692025 is a deficient number, since it is larger than the sum of its proper divisors (18338375).

64692025 is a wasteful number, since it uses less digits than its factorization.

64692025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849 (or 844 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 64692025 is about 8043.1352717706. The cubic root of 64692025 is about 401.4365533599.

The spelling of 64692025 in words is "sixty-four million, six hundred ninety-two thousand, twenty-five".