72647425 has 12 divisors (see below), whose sum is σ = 92179120. Its totient is φ = 56765520.

The previous prime is 72647417. The next prime is 72647437. The reversal of 72647425 is 52474627.

It is not a de Polignac number, because 72647425 - 2³ = 72647417 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32715 + ... + 34864.

Almost surely, 2^72647425 is an apocalyptic number.

It is an amenable number.

72647425 is a deficient number, since it is larger than the sum of its proper divisors (19531695).

72647425 is a wasteful number, since it uses less digits than its factorization.

72647425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67632 (or 67627 counting only the distinct ones).

The product of its digits is 94080, while the sum is 37.

The square root of 72647425 is about 8523.3458805800. The cubic root of 72647425 is about 417.2599885028.

The spelling of 72647425 in words is "seventy-two million, six hundred forty-seven thousand, four hundred twenty-five".