72055628 has 12 divisors (see below), whose sum is σ = 127873872. Its totient is φ = 35520240.

The previous prime is 72055603. The next prime is 72055631. The reversal of 72055628 is 82655027.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

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, 126575 + ... + 127142.

It is an arithmetic number, because the mean of its divisors is an integer number (10656156).

Almost surely, 2^72055628 is an apocalyptic number.

It is an amenable number.

72055628 is a deficient number, since it is larger than the sum of its proper divisors (55818244).

72055628 is a wasteful number, since it uses less digits than its factorization.

72055628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253792 (or 253790 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 72055628 is about 8488.5586526807. The cubic root of 72055628 is about 416.1238767547.

The spelling of 72055628 in words is "seventy-two million, fifty-five thousand, six hundred twenty-eight".