64791925 has 12 divisors (see below), whose sum is σ = 87646176. Its totient is φ = 47121200.

The previous prime is 64791899. The next prime is 64791949. The reversal of 64791925 is 52919746.

It is a happy number.

It is not a de Polignac number, because 64791925 - 2⁹ = 64791413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117529 + ... + 118078.

It is an arithmetic number, because the mean of its divisors is an integer number (7303848).

Almost surely, 2^64791925 is an apocalyptic number.

It is an amenable number.

64791925 is a deficient number, since it is larger than the sum of its proper divisors (22854251).

64791925 is a wasteful number, since it uses less digits than its factorization.

64791925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235628 (or 235623 counting only the distinct ones).

The product of its digits is 136080, while the sum is 43.

The square root of 64791925 is about 8049.3431409029. The cubic root of 64791925 is about 401.6430851863.

The spelling of 64791925 in words is "sixty-four million, seven hundred ninety-one thousand, nine hundred twenty-five".