72485725625 has 40 divisors (see below), whose sum is σ = 91203636744. Its totient is φ = 57589760000.

The previous prime is 72485725619. The next prime is 72485725633. The reversal of 72485725625 is 52652758427.

It is a happy number.

It can be written as a sum of positive squares in 20 ways, for example, as 71266039849 + 1219685776 = 266957^2 + 34924^2 .

It is not a de Polignac number, because 72485725625 - 2⁶ = 72485725561 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 95250245 + ... + 95251005.

Almost surely, 2^72485725625 is an apocalyptic number.

It is an amenable number.

72485725625 is a deficient number, since it is larger than the sum of its proper divisors (18717911119).

72485725625 is an equidigital number, since it uses as much as digits as its factorization.

72485725625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631 (or 1616 counting only the distinct ones).

The product of its digits is 9408000, while the sum is 53.

The spelling of 72485725625 in words is "seventy-two billion, four hundred eighty-five million, seven hundred twenty-five thousand, six hundred twenty-five".