72507752 has 16 divisors (see below), whose sum is σ = 136188000. Its totient is φ = 36190960.

The previous prime is 72507751. The next prime is 72507769. The reversal of 72507752 is 25770527.

It is not an unprimeable number, because it can be changed into a prime (72507751) 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, 2774 + ... + 12357.

It is an arithmetic number, because the mean of its divisors is an integer number (8511750).

Almost surely, 2^72507752 is an apocalyptic number.

It is an amenable number.

72507752 is a deficient number, since it is larger than the sum of its proper divisors (63680248).

72507752 is a wasteful number, since it uses less digits than its factorization.

72507752 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15736 (or 15732 counting only the distinct ones).

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

The square root of 72507752 is about 8515.1483839097. The cubic root of 72507752 is about 416.9924068953.

The spelling of 72507752 in words is "seventy-two million, five hundred seven thousand, seven hundred fifty-two".