725998552 has 16 divisors (see below), whose sum is σ = 1363268160. Its totient is φ = 362460384.

The previous prime is 725998513. The next prime is 725998561. The reversal of 725998552 is 255899527.

It is a self number, because there is not a number n which added to its sum of digits gives 725998552.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 61608 + ... + 72439.

It is an arithmetic number, because the mean of its divisors is an integer number (85204260).

Almost surely, 2^725998552 is an apocalyptic number.

It is an amenable number.

725998552 is a deficient number, since it is larger than the sum of its proper divisors (637269608).

725998552 is a wasteful number, since it uses less digits than its factorization.

725998552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134730 (or 134726 counting only the distinct ones).

The product of its digits is 2268000, while the sum is 52.

The square root of 725998552 is about 26944.3603004414. The cubic root of 725998552 is about 898.7631371820.

The spelling of 725998552 in words is "seven hundred twenty-five million, nine hundred ninety-eight thousand, five hundred fifty-two".