72818056 has 16 divisors (see below), whose sum is σ = 136647900. Its totient is φ = 36378624.

The previous prime is 72818047. The next prime is 72818063. The reversal of 72818056 is 65081827.

It can be written as a sum of positive squares in 2 ways, for example, as 71673156 + 1144900 = 8466^2 + 1070^2 .

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, 8856 + ... + 14968.

Almost surely, 2^72818056 is an apocalyptic number.

It is an amenable number.

72818056 is a deficient number, since it is larger than the sum of its proper divisors (63829844).

72818056 is a wasteful number, since it uses less digits than its factorization.

72818056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7608 (or 7604 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 72818056 is about 8533.3496354011. The cubic root of 72818056 is about 417.5864135615.

The spelling of 72818056 in words is "seventy-two million, eight hundred eighteen thousand, fifty-six".