72519004 has 12 divisors (see below), whose sum is σ = 128141104. Its totient is φ = 35907264.

The previous prime is 72518989. The next prime is 72519011. The reversal of 72519004 is 40091527.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 87597 + ... + 88420.

Almost surely, 2^72519004 is an apocalyptic number.

It is an amenable number.

72519004 is a deficient number, since it is larger than the sum of its proper divisors (55622100).

72519004 is a wasteful number, since it uses less digits than its factorization.

72519004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176124 (or 176122 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 72519004 is about 8515.8090631484. The cubic root of 72519004 is about 417.0139758805.

The spelling of 72519004 in words is "seventy-two million, five hundred nineteen thousand, four".