72045625 has 20 divisors (see below), whose sum is σ = 94782160. Its totient is φ = 54594000.

The previous prime is 72045619. The next prime is 72045629. The reversal of 72045625 is 52654027.

It is not a de Polignac number, because 72045625 - 2¹¹ = 72043577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72045629) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8842 + ... + 14908.

It is an arithmetic number, because the mean of its divisors is an integer number (4739108).

Almost surely, 2^72045625 is an apocalyptic number.

It is an amenable number.

72045625 is a deficient number, since it is larger than the sum of its proper divisors (22736535).

72045625 is an equidigital number, since it uses as much as digits as its factorization.

72045625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6106 (or 6091 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 72045625 is about 8487.9694273719. The cubic root of 72045625 is about 416.1046199671.

The spelling of 72045625 in words is "seventy-two million, forty-five thousand, six hundred twenty-five".