725531962239613 has 2 divisors, whose sum is σ = 725531962239614. Its totient is φ = 725531962239612.

The previous prime is 725531962239397. The next prime is 725531962239629. The reversal of 725531962239613 is 316932269135527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725530749319684 + 1212919929 = 26935678^2 + 34827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-725531962239613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (725531962239013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362765981119806 + 362765981119807.

It is an arithmetic number, because the mean of its divisors is an integer number (362765981119807).

Almost surely, 2^{725531962239613} is an apocalyptic number.

It is an amenable number.

725531962239613 is a deficient number, since it is larger than the sum of its proper divisors (1).

725531962239613 is an equidigital number, since it uses as much as digits as its factorization.

725531962239613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 110224800, while the sum is 64.

The spelling of 725531962239613 in words is "seven hundred twenty-five trillion, five hundred thirty-one billion, nine hundred sixty-two million, two hundred thirty-nine thousand, six hundred thirteen".