725568865527 has 32 divisors (see below), whose sum is σ = 1059296152320. Its totient is φ = 438107040000.

The previous prime is 725568865523. The next prime is 725568865547.

725568865527 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 725568865527 - 2² = 725568865523 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (725568865523) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9700749 + ... + 9775257.

It is an arithmetic number, because the mean of its divisors is an integer number (33103004760).

Almost surely, 2^725568865527 is an apocalyptic number.

725568865527 is a deficient number, since it is larger than the sum of its proper divisors (333727286793).

725568865527 is a wasteful number, since it uses less digits than its factorization.

725568865527 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75615.

The product of its digits is 282240000, while the sum is 66.

The spelling of 725568865527 in words is "seven hundred twenty-five billion, five hundred sixty-eight million, eight hundred sixty-five thousand, five hundred twenty-seven".