64157625 has 48 divisors (see below), whose sum is σ = 132193152. Its totient is φ = 29325600.

The previous prime is 64157617. The next prime is 64157633. The reversal of 64157625 is 52675146.

It is a happy number.

64157625 is a `hidden beast` number, since 64 + 1 + 576 + 25 = 666.

It is an interprime number because it is at equal distance from previous prime (64157617) and next prime (64157633).

It is not a de Polignac number, because 64157625 - 2³ = 64157617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 64157625.

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, 3802 + ... + 11948.

It is an arithmetic number, because the mean of its divisors is an integer number (2754024).

Almost surely, 2^64157625 is an apocalyptic number.

It is an amenable number.

64157625 is an abundant number, since it is smaller than the sum of its proper divisors (68035527).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64157625 is a wasteful number, since it uses less digits than its factorization.

64157625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8175 (or 8162 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 64157625 is about 8009.8455041280. The cubic root of 64157625 is about 400.3281161925.

It can be divided in two parts, 641576 and 25, that added together give a square (641601 = 801²).

The spelling of 64157625 in words is "sixty-four million, one hundred fifty-seven thousand, six hundred twenty-five".