72064552 has 32 divisors (see below), whose sum is σ = 158195520. Its totient is φ = 30130560.

The previous prime is 72064477. The next prime is 72064571. The reversal of 72064552 is 25546027.

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, 13398 + ... + 17989.

It is an arithmetic number, because the mean of its divisors is an integer number (4943610).

Almost surely, 2^72064552 is an apocalyptic number.

It is an amenable number.

72064552 is an abundant number, since it is smaller than the sum of its proper divisors (86130968).

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

72064552 is a wasteful number, since it uses less digits than its factorization.

72064552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31441 (or 31437 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 72064552 is about 8489.0842851276. The cubic root of 72064552 is about 416.1410548539.

The spelling of 72064552 in words is "seventy-two million, sixty-four thousand, five hundred fifty-two".