725759231 has 4 divisors (see below), whose sum is σ = 735981264. Its totient is φ = 715537200.

The previous prime is 725759173. The next prime is 725759267. The reversal of 725759231 is 132957527.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132957527 = 17 ⋅7821031.

It is a cyclic number.

It is not a de Polignac number, because 725759231 - 2¹⁴ = 725742847 is a prime.

It is a super-2 number, since 2×725759231² = 1053452922763422722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725759431) by changing a digit.

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, 5110910 + ... + 5111051.

It is an arithmetic number, because the mean of its divisors is an integer number (183995316).

Almost surely, 2^725759231 is an apocalyptic number.

725759231 is a gapful number since it is divisible by the number (71) formed by its first and last digit.

725759231 is a deficient number, since it is larger than the sum of its proper divisors (10222033).

725759231 is a wasteful number, since it uses less digits than its factorization.

725759231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10222032.

The product of its digits is 132300, while the sum is 41.

The square root of 725759231 is about 26939.9189122759. The cubic root of 725759231 is about 898.6643690641.

The spelling of 725759231 in words is "seven hundred twenty-five million, seven hundred fifty-nine thousand, two hundred thirty-one".