72865325 has 12 divisors (see below), whose sum is σ = 97303668. Its totient is φ = 53808000.

The previous prime is 72865307. The next prime is 72865327. The reversal of 72865325 is 52356827.

It can be written as a sum of positive squares in 6 ways, for example, as 29278921 + 43586404 = 5411^2 + 6602^2 .

It is a de Polignac number, because none of the positive numbers 2^k-72865325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72865327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 111776 + ... + 112425.

It is an arithmetic number, because the mean of its divisors is an integer number (8108639).

Almost surely, 2^72865325 is an apocalyptic number.

It is an amenable number.

72865325 is a deficient number, since it is larger than the sum of its proper divisors (24438343).

72865325 is a wasteful number, since it uses less digits than its factorization.

72865325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224224 (or 224219 counting only the distinct ones).

The product of its digits is 100800, while the sum is 38.

The square root of 72865325 is about 8536.1188487509. The cubic root of 72865325 is about 417.6767511495.

The spelling of 72865325 in words is "seventy-two million, eight hundred sixty-five thousand, three hundred twenty-five".