725292304172 has 12 divisors (see below), whose sum is σ = 1269272887680. Its totient is φ = 362642907696.

The previous prime is 725292304133. The next prime is 725292304189. The reversal of 725292304172 is 271403292527.

725292304172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×725292304172² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 267647 + ... + 1233782.

It is an arithmetic number, because the mean of its divisors is an integer number (105772740640).

Almost surely, 2^725292304172 is an apocalyptic number.

It is an amenable number.

725292304172 is a deficient number, since it is larger than the sum of its proper divisors (543980583508).

725292304172 is a wasteful number, since it uses less digits than its factorization.

725292304172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622200 (or 1622198 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 44.

Adding to 725292304172 its reverse (271403292527), we get a palindrome (996695596699).

The spelling of 725292304172 in words is "seven hundred twenty-five billion, two hundred ninety-two million, three hundred four thousand, one hundred seventy-two".