725137223 has 8 divisors (see below), whose sum is σ = 767523120. Its totient is φ = 683173440.

The previous prime is 725137163. The next prime is 725137229. The reversal of 725137223 is 322731527.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 725137223 - 2¹² = 725133127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 725137223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725137229) 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 7 ways as a sum of consecutive naturals, for example, 101990 + ... + 108867.

It is an arithmetic number, because the mean of its divisors is an integer number (95940390).

Almost surely, 2^725137223 is an apocalyptic number.

725137223 is a deficient number, since it is larger than the sum of its proper divisors (42385897).

725137223 is a wasteful number, since it uses less digits than its factorization.

725137223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211057.

The product of its digits is 17640, while the sum is 32.

The square root of 725137223 is about 26928.3720822481. The cubic root of 725137223 is about 898.4075638830.

The spelling of 725137223 in words is "seven hundred twenty-five million, one hundred thirty-seven thousand, two hundred twenty-three".