72251056 has 10 divisors (see below), whose sum is σ = 139986452. Its totient is φ = 36125520.

The previous prime is 72251041. The next prime is 72251063. The reversal of 72251056 is 65015227.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2257830 + ... + 2257861.

Almost surely, 2^72251056 is an apocalyptic number.

It is an amenable number.

72251056 is a deficient number, since it is larger than the sum of its proper divisors (67735396).

72251056 is a wasteful number, since it uses less digits than its factorization.

72251056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4515699 (or 4515693 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 72251056 is about 8500.0621174201. The cubic root of 72251056 is about 416.4997384306.

It can be divided in two parts, 7225 and 1056, that added together give a square (8281 = 91²).

The spelling of 72251056 in words is "seventy-two million, two hundred fifty-one thousand, fifty-six".