72324025 has 12 divisors (see below), whose sum is σ = 90555712. Its totient is φ = 57295440.

The previous prime is 72323989. The next prime is 72324037. The reversal of 72324025 is 52042327.

It is a de Polignac number, because none of the positive numbers 2^k-72324025 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian 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, 11469 + ... + 16618.

Almost surely, 2^72324025 is an apocalyptic number.

It is an amenable number.

72324025 is a deficient number, since it is larger than the sum of its proper divisors (18231687).

72324025 is a wasteful number, since it uses less digits than its factorization.

72324025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28200 (or 28195 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 72324025 is about 8504.3532969885. The cubic root of 72324025 is about 416.6399040588.

The spelling of 72324025 in words is "seventy-two million, three hundred twenty-four thousand, twenty-five".