72500272 has 20 divisors (see below), whose sum is σ = 151275040. Its totient is φ = 33461568.

The previous prime is 72500249. The next prime is 72500287. The reversal of 72500272 is 27200527.

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, 174072 + ... + 174487.

It is an arithmetic number, because the mean of its divisors is an integer number (7563752).

Almost surely, 2^72500272 is an apocalyptic number.

It is an amenable number.

72500272 is an abundant number, since it is smaller than the sum of its proper divisors (78774768).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72500272 is a wasteful number, since it uses less digits than its factorization.

72500272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 348580 (or 348574 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 72500272 is about 8514.7091553382. The cubic root of 72500272 is about 416.9780672311.

Adding to 72500272 its reverse (27200527), we get a palindrome (99700799).

The spelling of 72500272 in words is "seventy-two million, five hundred thousand, two hundred seventy-two".