72522524 has 12 divisors (see below), whose sum is σ = 128702448. Its totient is φ = 35750400.

The previous prime is 72522521. The next prime is 72522529. The reversal of 72522524 is 42522527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72522521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127397 + ... + 127964.

It is an arithmetic number, because the mean of its divisors is an integer number (10725204).

Almost surely, 2^72522524 is an apocalyptic number.

It is an amenable number.

72522524 is a deficient number, since it is larger than the sum of its proper divisors (56179924).

72522524 is a wasteful number, since it uses less digits than its factorization.

72522524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255436 (or 255434 counting only the distinct ones).

The product of its digits is 11200, while the sum is 29.

The square root of 72522524 is about 8516.0157350724. The cubic root of 72522524 is about 417.0207229186.

The spelling of 72522524 in words is "seventy-two million, five hundred twenty-two thousand, five hundred twenty-four".