72216625 has 32 divisors (see below), whose sum is σ = 102211200. Its totient is φ = 50500800.

The previous prime is 72216541. The next prime is 72216631. The reversal of 72216625 is 52661227.

It is not a de Polignac number, because 72216625 - 2¹¹ = 72214577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29706 + ... + 32044.

It is an arithmetic number, because the mean of its divisors is an integer number (3194100).

Almost surely, 2^72216625 is an apocalyptic number.

It is an amenable number.

72216625 is a deficient number, since it is larger than the sum of its proper divisors (29994575).

72216625 is a wasteful number, since it uses less digits than its factorization.

72216625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2386 (or 2376 counting only the distinct ones).

The product of its digits is 10080, while the sum is 31.

The square root of 72216625 is about 8498.0365379304. The cubic root of 72216625 is about 416.4335673974.

The spelling of 72216625 in words is "seventy-two million, two hundred sixteen thousand, six hundred twenty-five".