72945625 has 20 divisors (see below), whose sum is σ = 91970560. Its totient is φ = 57834000.

The previous prime is 72945619. The next prime is 72945637. The reversal of 72945625 is 52654927.

It is not a de Polignac number, because 72945625 - 2¹³ = 72937433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 78916 + ... + 79834.

It is an arithmetic number, because the mean of its divisors is an integer number (4598528).

Almost surely, 2^72945625 is an apocalyptic number.

It is an amenable number.

72945625 is a deficient number, since it is larger than the sum of its proper divisors (19024935).

72945625 is an equidigital number, since it uses as much as digits as its factorization.

72945625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1051 counting only the distinct ones).

The product of its digits is 151200, while the sum is 40.

The square root of 72945625 is about 8540.8210963584. The cubic root of 72945625 is about 417.8301260235.

The spelling of 72945625 in words is "seventy-two million, nine hundred forty-five thousand, six hundred twenty-five".