72615625 has 24 divisors (see below), whose sum is σ = 95618880. Its totient is φ = 54990000.

The previous prime is 72615601. The next prime is 72615637. The reversal of 72615625 is 52651627.

It is not a de Polignac number, because 72615625 - 2⁵ = 72615593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58764 + ... + 59986.

It is an arithmetic number, because the mean of its divisors is an integer number (3984120).

Almost surely, 2^72615625 is an apocalyptic number.

It is an amenable number.

72615625 is a deficient number, since it is larger than the sum of its proper divisors (23003255).

72615625 is an equidigital number, since it uses as much as digits as its factorization.

72615625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1267 (or 1247 counting only the distinct ones).

The product of its digits is 25200, while the sum is 34.

The square root of 72615625 is about 8521.4802117942. The cubic root of 72615625 is about 417.1990971307.

The spelling of 72615625 in words is "seventy-two million, six hundred fifteen thousand, six hundred twenty-five".