72917425 has 24 divisors (see below), whose sum is σ = 106675712. Its totient is φ = 48384000.

The previous prime is 72917413. The next prime is 72917473. The reversal of 72917425 is 52471927.

It is not a de Polignac number, because 72917425 - 2⁷ = 72917297 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1296 + ... + 12145.

Almost surely, 2^72917425 is an apocalyptic number.

It is an amenable number.

72917425 is a deficient number, since it is larger than the sum of its proper divisors (33758287).

72917425 is a wasteful number, since it uses less digits than its factorization.

72917425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13489 (or 13484 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 72917425 is about 8539.1700416375. The cubic root of 72917425 is about 417.7762761948.

The spelling of 72917425 in words is "seventy-two million, nine hundred seventeen thousand, four hundred twenty-five".