725152613 has 24 divisors (see below), whose sum is σ = 792967680. Its totient is φ = 662631840.

The previous prime is 725152471. The next prime is 725152661. The reversal of 725152613 is 316251527.

It is not a de Polignac number, because 725152613 - 2¹⁸ = 724890469 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 725152613.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725152013) 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 23 ways as a sum of consecutive naturals, for example, 1340123 + ... + 1340663.

It is an arithmetic number, because the mean of its divisors is an integer number (33040320).

Almost surely, 2^725152613 is an apocalyptic number.

It is an amenable number.

725152613 is a deficient number, since it is larger than the sum of its proper divisors (67815067).

725152613 is a wasteful number, since it uses less digits than its factorization.

725152613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 705 (or 686 counting only the distinct ones).

The product of its digits is 12600, while the sum is 32.

The square root of 725152613 is about 26928.6578388155. The cubic root of 725152613 is about 898.4139196430.

The spelling of 725152613 in words is "seven hundred twenty-five million, one hundred fifty-two thousand, six hundred thirteen".