725533172 has 48 divisors (see below), whose sum is σ = 1595973120. Its totient is φ = 280910592.

The previous prime is 725533163. The next prime is 725533177. The reversal of 725533172 is 271335527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725533177) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4097 + ... + 38312.

It is an arithmetic number, because the mean of its divisors is an integer number (33249440).

Almost surely, 2^725533172 is an apocalyptic number.

It is an amenable number.

725533172 is an abundant number, since it is smaller than the sum of its proper divisors (870439948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

725533172 is a wasteful number, since it uses less digits than its factorization.

725533172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42480 (or 42478 counting only the distinct ones).

The product of its digits is 44100, while the sum is 35.

The square root of 725533172 is about 26935.7229715484. The cubic root of 725533172 is about 898.5710542492.

Adding to 725533172 its reverse (271335527), we get a palindrome (996868699).

The spelling of 725533172 in words is "seven hundred twenty-five million, five hundred thirty-three thousand, one hundred seventy-two".