725222388571 has 2 divisors, whose sum is σ = 725222388572. Its totient is φ = 725222388570.

The previous prime is 725222388563. The next prime is 725222388599. The reversal of 725222388571 is 175883222527.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 725222388571 - 2³ = 725222388563 is a prime.

It is a super-2 number, since 2×725222388571² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (725222382571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362611194285 + 362611194286.

It is an arithmetic number, because the mean of its divisors is an integer number (362611194286).

Almost surely, 2^725222388571 is an apocalyptic number.

725222388571 is a deficient number, since it is larger than the sum of its proper divisors (1).

725222388571 is an equidigital number, since it uses as much as digits as its factorization.

725222388571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3763200, while the sum is 52.

The spelling of 725222388571 in words is "seven hundred twenty-five billion, two hundred twenty-two million, three hundred eighty-eight thousand, five hundred seventy-one".