72949555 has 8 divisors (see below), whose sum is σ = 100045152. Its totient is φ = 50022528.

The previous prime is 72949549. The next prime is 72949633. The reversal of 72949555 is 55594927.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72949555 - 2²⁵ = 39395123 is a prime.

It is a Duffinian number.

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, 1042102 + ... + 1042171.

It is an arithmetic number, because the mean of its divisors is an integer number (12505644).

Almost surely, 2^72949555 is an apocalyptic number.

72949555 is a deficient number, since it is larger than the sum of its proper divisors (27095597).

72949555 is a wasteful number, since it uses less digits than its factorization.

72949555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2084285.

The product of its digits is 567000, while the sum is 46.

The square root of 72949555 is about 8541.0511648157. The cubic root of 72949555 is about 417.8376295254.

The spelling of 72949555 in words is "seventy-two million, nine hundred forty-nine thousand, five hundred fifty-five".