725332624 has 15 divisors (see below), whose sum is σ = 1405540713. Its totient is φ = 362612448.

The previous prime is 725332583. The next prime is 725332627. The reversal of 725332624 is 426233527.

The square root of 725332624 is 26932.

It is a perfect power (a square), and thus also a powerful number.

725332624 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 721459600 + 3873024 = 26860^2 + 1968^2 .

It is a super-2 number, since 2×725332624² = 1052214830877450752, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725332624.

It is not an unprimeable number, because it can be changed into a prime (725332627) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 104362 + ... + 111094.

Almost surely, 2^725332624 is an apocalyptic number.

725332624 is the 26932-nd square number.

It is an amenable number.

725332624 is a deficient number, since it is larger than the sum of its proper divisors (680208089).

725332624 is an frugal number, since it uses more digits than its factorization.

725332624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13474 (or 6735 counting only the distinct ones).

The product of its digits is 60480, while the sum is 34.

The cubic root of 725332624 is about 898.4882538843.

It can be divided in two parts, 72533 and 2624, that added together give a palindrome (75157).

The spelling of 725332624 in words is "seven hundred twenty-five million, three hundred thirty-two thousand, six hundred twenty-four".