72552732 has 48 divisors (see below), whose sum is σ = 197433600. Its totient is φ = 20728176.

The previous prime is 72552721. The next prime is 72552737. The reversal of 72552732 is 23725527.

It is a junction number, because it is equal to n+sod(n) for n = 72552693 and 72552702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72552737) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4698 + ... + 12929.

It is an arithmetic number, because the mean of its divisors is an integer number (4113200).

Almost surely, 2^72552732 is an apocalyptic number.

It is an amenable number.

72552732 is an abundant number, since it is smaller than the sum of its proper divisors (124880868).

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

72552732 is a wasteful number, since it uses less digits than its factorization.

72552732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17655 (or 17639 counting only the distinct ones).

The product of its digits is 29400, while the sum is 33.

The square root of 72552732 is about 8517.7891497735. The cubic root of 72552732 is about 417.0786157985.

The spelling of 72552732 in words is "seventy-two million, five hundred fifty-two thousand, seven hundred thirty-two".