64265725 has 12 divisors (see below), whose sum is σ = 79830580. Its totient is φ = 51321600.

The previous prime is 64265713. The next prime is 64265731. The reversal of 64265725 is 52756246.

It can be written as a sum of positive squares in 6 ways, for example, as 1110916 + 63154809 = 1054^2 + 7947^2 .

It is not a de Polignac number, because 64265725 - 2⁹ = 64265213 is a prime.

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, 14581 + ... + 18469.

Almost surely, 2^64265725 is an apocalyptic number.

It is an amenable number.

64265725 is a deficient number, since it is larger than the sum of its proper divisors (15564855).

64265725 is a wasteful number, since it uses less digits than its factorization.

64265725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4560 (or 4555 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 64265725 is about 8016.5906094798. The cubic root of 64265725 is about 400.5528293473.

The spelling of 64265725 in words is "sixty-four million, two hundred sixty-five thousand, seven hundred twenty-five".