725522432 has 24 divisors (see below), whose sum is σ = 1450694700. Its totient is φ = 362760192.

The previous prime is 725522407. The next prime is 725522443. The reversal of 725522432 is 234225527.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175082 + ... + 179177.

Almost surely, 2^725522432 is an apocalyptic number.

It is an amenable number.

725522432 is a deficient number, since it is larger than the sum of its proper divisors (725172268).

725522432 is an equidigital number, since it uses as much as digits as its factorization.

725522432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354281 (or 354261 counting only the distinct ones).

The product of its digits is 33600, while the sum is 32.

The square root of 725522432 is about 26935.5236073108. The cubic root of 725522432 is about 898.5666204061.

Adding to 725522432 its reverse (234225527), we get a palindrome (959747959).

The spelling of 725522432 in words is "seven hundred twenty-five million, five hundred twenty-two thousand, four hundred thirty-two".