725459903 has 4 divisors (see below), whose sum is σ = 829097040. Its totient is φ = 621822768.

The previous prime is 725459849. The next prime is 725459909. The reversal of 725459903 is 309954527.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 725459903 - 2²² = 721265599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725459909) 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, 51818558 + ... + 51818571.

It is an arithmetic number, because the mean of its divisors is an integer number (207274260).

Almost surely, 2^725459903 is an apocalyptic number.

725459903 is a deficient number, since it is larger than the sum of its proper divisors (103637137).

725459903 is a wasteful number, since it uses less digits than its factorization.

725459903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103637136.

The product of its (nonzero) digits is 340200, while the sum is 44.

The square root of 725459903 is about 26934.3628660490. The cubic root of 725459903 is about 898.5408054054.

The spelling of 725459903 in words is "seven hundred twenty-five million, four hundred fifty-nine thousand, nine hundred three".