72256252 has 12 divisors (see below), whose sum is σ = 127869840. Its totient is φ = 35722016.

The previous prime is 72256229. The next prime is 72256291. The reversal of 72256252 is 25265227.

It is a congruent number.

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, 101128 + ... + 101839.

It is an arithmetic number, because the mean of its divisors is an integer number (10655820).

Almost surely, 2^72256252 is an apocalyptic number.

It is an amenable number.

72256252 is a deficient number, since it is larger than the sum of its proper divisors (55613588).

72256252 is a wasteful number, since it uses less digits than its factorization.

72256252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203060 (or 203058 counting only the distinct ones).

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

The square root of 72256252 is about 8500.3677567503. The cubic root of 72256252 is about 416.5097225097.

Subtracting from 72256252 its reverse (25265227), we obtain a square (46991025 = 6855²).

The spelling of 72256252 in words is "seventy-two million, two hundred fifty-six thousand, two hundred fifty-two".