72748625 has 16 divisors (see below), whose sum is σ = 95571840. Its totient is φ = 55134000.

The previous prime is 72748601. The next prime is 72748631. The reversal of 72748625 is 52684727.

It is a de Polignac number, because none of the positive numbers 2^k-72748625 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 15 ways as a sum of consecutive naturals, for example, 12941 + ... + 17690.

It is an arithmetic number, because the mean of its divisors is an integer number (5973240).

Almost surely, 2^72748625 is an apocalyptic number.

It is an amenable number.

72748625 is a deficient number, since it is larger than the sum of its proper divisors (22823215).

72748625 is a wasteful number, since it uses less digits than its factorization.

72748625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30665 (or 30655 counting only the distinct ones).

The product of its digits is 188160, while the sum is 41.

The square root of 72748625 is about 8529.2804503076. The cubic root of 72748625 is about 417.4536504177.

The spelling of 72748625 in words is "seventy-two million, seven hundred forty-eight thousand, six hundred twenty-five".