72500756 has 12 divisors (see below), whose sum is σ = 127219092. Its totient is φ = 36152448.

The previous prime is 72500741. The next prime is 72500759. The reversal of 72500756 is 65700527.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 41809156 + 30691600 = 6466^2 + 5540^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72500759) 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, 22805 + ... + 25788.

It is an arithmetic number, because the mean of its divisors is an integer number (10601591).

Almost surely, 2^72500756 is an apocalyptic number.

It is an amenable number.

72500756 is a deficient number, since it is larger than the sum of its proper divisors (54718336).

72500756 is a wasteful number, since it uses less digits than its factorization.

72500756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48970 (or 48968 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 72500756 is about 8514.7375766961. The cubic root of 72500756 is about 416.9789951215.

The spelling of 72500756 in words is "seventy-two million, five hundred thousand, seven hundred fifty-six".