725339051 has 4 divisors (see below), whose sum is σ = 768006072. Its totient is φ = 682672032.

The previous prime is 725339033. The next prime is 725339059. The reversal of 725339051 is 150933527.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 725339051 - 2¹⁰ = 725338027 is a prime.

It is a super-2 number, since 2×725339051² = 1052233477811161202, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (725339059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21333485 + ... + 21333518.

It is an arithmetic number, because the mean of its divisors is an integer number (192001518).

Almost surely, 2^725339051 is an apocalyptic number.

725339051 is a deficient number, since it is larger than the sum of its proper divisors (42667021).

725339051 is a wasteful number, since it uses less digits than its factorization.

725339051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42667020.

The product of its (nonzero) digits is 28350, while the sum is 35.

The square root of 725339051 is about 26932.1193187614. The cubic root of 725339051 is about 898.4909076401.

The spelling of 725339051 in words is "seven hundred twenty-five million, three hundred thirty-nine thousand, fifty-one".