72285625 has 10 divisors (see below), whose sum is σ = 90328898. Its totient is φ = 57828000.

The previous prime is 72285617. The next prime is 72285637. The reversal of 72285625 is 52658227.

It can be written as a sum of positive squares in 5 ways, for example, as 39200121 + 33085504 = 6261^2 + 5752^2 .

It is not a de Polignac number, because 72285625 - 2³ = 72285617 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 57204 + ... + 58453.

Almost surely, 2^72285625 is an apocalyptic number.

It is an amenable number.

72285625 is a deficient number, since it is larger than the sum of its proper divisors (18043273).

72285625 is an equidigital number, since it uses as much as digits as its factorization.

72285625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115677 (or 115662 counting only the distinct ones).

The product of its digits is 67200, while the sum is 37.

The square root of 72285625 is about 8502.0953299760. The cubic root of 72285625 is about 416.5661535328.

The spelling of 72285625 in words is "seventy-two million, two hundred eighty-five thousand, six hundred twenty-five".