64625265 has 48 divisors (see below), whose sum is σ = 115240320. Its totient is φ = 33492480.

The previous prime is 64625261. The next prime is 64625269. The reversal of 64625265 is 56252646.

64625265 is a `hidden beast` number, since 6 + 4 + 625 + 26 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (64625261) and next prime (64625269).

It is not a de Polignac number, because 64625265 - 2² = 64625261 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (64625261) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 360946 + ... + 361124.

It is an arithmetic number, because the mean of its divisors is an integer number (2400840).

Almost surely, 2^64625265 is an apocalyptic number.

It is an amenable number.

64625265 is a deficient number, since it is larger than the sum of its proper divisors (50615055).

64625265 is a wasteful number, since it uses less digits than its factorization.

64625265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 371 counting only the distinct ones).

The product of its digits is 86400, while the sum is 36.

The square root of 64625265 is about 8038.9840776058. The cubic root of 64625265 is about 401.2984161451.

The spelling of 64625265 in words is "sixty-four million, six hundred twenty-five thousand, two hundred sixty-five".