725025558757 has 4 divisors (see below), whose sum is σ = 725047060140. Its totient is φ = 725004057376.

The previous prime is 725025558683. The next prime is 725025558821. The reversal of 725025558757 is 757855520527.

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

It can be written as a sum of positive squares in 2 ways, for example, as 477493438081 + 247532120676 = 691009^2 + 497526^2 .

It is a cyclic number.

It is not a de Polignac number, because 725025558757 - 2¹⁵ = 725025525989 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725025558557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10700032 + ... + 10767577.

It is an arithmetic number, because the mean of its divisors is an integer number (181261765035).

Almost surely, 2^725025558757 is an apocalyptic number.

It is an amenable number.

725025558757 is a deficient number, since it is larger than the sum of its proper divisors (21501383).

725025558757 is a wasteful number, since it uses less digits than its factorization.

725025558757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21501382.

The product of its (nonzero) digits is 34300000, while the sum is 58.

The spelling of 725025558757 in words is "seven hundred twenty-five billion, twenty-five million, five hundred fifty-eight thousand, seven hundred fifty-seven".