725548998 has 16 divisors (see below), whose sum is σ = 1459117296. Its totient is φ = 240513120.

The previous prime is 725548987. The next prime is 725549087. The reversal of 725548998 is 899845527.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332961 + ... + 335132.

It is an arithmetic number, because the mean of its divisors is an integer number (91194831).

Almost surely, 2^725548998 is an apocalyptic number.

725548998 is an abundant number, since it is smaller than the sum of its proper divisors (733568298).

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

725548998 is a wasteful number, since it uses less digits than its factorization.

725548998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668279.

The product of its digits is 7257600, while the sum is 57.

The square root of 725548998 is about 26936.0167433865. The cubic root of 725548998 is about 898.5775876891.

The spelling of 725548998 in words is "seven hundred twenty-five million, five hundred forty-eight thousand, nine hundred ninety-eight".