72500552 has 16 divisors (see below), whose sum is σ = 136328940. Its totient is φ = 36146176.

The previous prime is 72500543. The next prime is 72500573. The reversal of 72500552 is 25500527.

It can be written as a sum of positive squares in 2 ways, for example, as 70997476 + 1503076 = 8426^2 + 1226^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10013 + ... + 15660.

Almost surely, 2^72500552 is an apocalyptic number.

It is an amenable number.

72500552 is a deficient number, since it is larger than the sum of its proper divisors (63828388).

72500552 is a wasteful number, since it uses less digits than its factorization.

72500552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26032 (or 26028 counting only the distinct ones).

The product of its (nonzero) digits is 3500, while the sum is 26.

The square root of 72500552 is about 8514.7255974576. The cubic root of 72500552 is about 416.9786040277.

The spelling of 72500552 in words is "seventy-two million, five hundred thousand, five hundred fifty-two".