725913105816125 has 16 divisors (see below), whose sum is σ = 905943002293056. Its totient is φ = 580728275528400.

The previous prime is 725913105816113. The next prime is 725913105816131. The reversal of 725913105816125 is 521618501319527.

It is a happy number.

It is not a de Polignac number, because 725913105816125 - 2⁴ = 725913105816109 is a prime.

It is a super-2 number, since 2×725913105816125² (a number of 31 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22347794 + ... + 44172956.

It is an arithmetic number, because the mean of its divisors is an integer number (56621437643316).

Almost surely, 2^{725913105816125} is an apocalyptic number.

It is an amenable number.

725913105816125 is a deficient number, since it is larger than the sum of its proper divisors (180029896476931).

725913105816125 is a wasteful number, since it uses less digits than its factorization.

725913105816125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22091261 (or 22091251 counting only the distinct ones).

The product of its (nonzero) digits is 4536000, while the sum is 56.

The spelling of 725913105816125 in words is "seven hundred twenty-five trillion, nine hundred thirteen billion, one hundred five million, eight hundred sixteen thousand, one hundred twenty-five".