725505544 has 16 divisors (see below), whose sum is σ = 1360789200. Its totient is φ = 362628432.

The previous prime is 725505541. The next prime is 725505553. The reversal of 725505544 is 445505527.

It is not an unprimeable number, because it can be changed into a prime (725505541) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12159 + ... + 39985.

It is an arithmetic number, because the mean of its divisors is an integer number (85049325).

Almost surely, 2^725505544 is an apocalyptic number.

It is an amenable number.

725505544 is a deficient number, since it is larger than the sum of its proper divisors (635283656).

725505544 is a wasteful number, since it uses less digits than its factorization.

725505544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31092 (or 31088 counting only the distinct ones).

The product of its (nonzero) digits is 140000, while the sum is 37.

The square root of 725505544 is about 26935.2101161287. The cubic root of 725505544 is about 898.5596483677.

The spelling of 725505544 in words is "seven hundred twenty-five million, five hundred five thousand, five hundred forty-four".