72652552 has 16 divisors (see below), whose sum is σ = 155684160. Its totient is φ = 31136784.

The previous prime is 72652537. The next prime is 72652597. The reversal of 72652552 is 25525627.

It is a super-2 number, since 2×72652552² = 10556786624225408, which contains 22 as substring.

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, 648628 + ... + 648739.

It is an arithmetic number, because the mean of its divisors is an integer number (9730260).

Almost surely, 2^72652552 is an apocalyptic number.

It is an amenable number.

72652552 is an abundant number, since it is smaller than the sum of its proper divisors (83031608).

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

72652552 is a wasteful number, since it uses less digits than its factorization.

72652552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1297380 (or 1297376 counting only the distinct ones).

The product of its digits is 42000, while the sum is 34.

The square root of 72652552 is about 8523.6466374434. The cubic root of 72652552 is about 417.2698041370.

The spelling of 72652552 in words is "seventy-two million, six hundred fifty-two thousand, five hundred fifty-two".