64288925 has 6 divisors (see below), whose sum is σ = 79718298. Its totient is φ = 51431120.

The previous prime is 64288921. The next prime is 64288949. The reversal of 64288925 is 52988246.

It can be written as a sum of positive squares in 3 ways, for example, as 6255001 + 58033924 = 2501^2 + 7618^2 .

It is not a de Polignac number, because 64288925 - 2² = 64288921 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64288921) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1285754 + ... + 1285803.

It is an arithmetic number, because the mean of its divisors is an integer number (13286383).

Almost surely, 2^64288925 is an apocalyptic number.

It is an amenable number.

64288925 is a deficient number, since it is larger than the sum of its proper divisors (15429373).

64288925 is a wasteful number, since it uses less digits than its factorization.

64288925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571567 (or 2571562 counting only the distinct ones).

The product of its digits is 276480, while the sum is 44.

The square root of 64288925 is about 8018.0374780865. The cubic root of 64288925 is about 400.6010235577.

The spelling of 64288925 in words is "sixty-four million, two hundred eighty-eight thousand, nine hundred twenty-five".