72707525 has 12 divisors (see below), whose sum is σ = 98353824. Its totient is φ = 52878000.

The previous prime is 72707501. The next prime is 72707549. The reversal of 72707525 is 52570727.

It is an interprime number because it is at equal distance from previous prime (72707501) and next prime (72707549).

It is not a de Polignac number, because 72707525 - 2⁶ = 72707461 is a prime.

It is a Duffinian number.

It is a congruent 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, 131921 + ... + 132470.

It is an arithmetic number, because the mean of its divisors is an integer number (8196152).

Almost surely, 2^72707525 is an apocalyptic number.

It is an amenable number.

72707525 is a deficient number, since it is larger than the sum of its proper divisors (25646299).

72707525 is a wasteful number, since it uses less digits than its factorization.

72707525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264412 (or 264407 counting only the distinct ones).

The product of its (nonzero) digits is 34300, while the sum is 35.

The square root of 72707525 is about 8526.8707624779. The cubic root of 72707525 is about 417.3750208578.

The spelling of 72707525 in words is "seventy-two million, seven hundred seven thousand, five hundred twenty-five".