72057252 has 24 divisors (see below), whose sum is σ = 175444416. Its totient is φ = 22974688.

The previous prime is 72057221. The next prime is 72057269. The reversal of 72057252 is 25275027.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130263 + ... + 130814.

It is an arithmetic number, because the mean of its divisors is an integer number (7310184).

Almost surely, 2^72057252 is an apocalyptic number.

It is an amenable number.

72057252 is an abundant number, since it is smaller than the sum of its proper divisors (103387164).

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

72057252 is a wasteful number, since it uses less digits than its factorization.

72057252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261107 (or 261105 counting only the distinct ones).

The product of its (nonzero) digits is 9800, while the sum is 30.

The square root of 72057252 is about 8488.6543103133. The cubic root of 72057252 is about 416.1270029509.

The spelling of 72057252 in words is "seventy-two million, fifty-seven thousand, two hundred fifty-two".