25122163255 has 16 divisors (see below), whose sum is σ = 34552558080. Its totient is φ = 17176973472.

The previous prime is 25122163247. The next prime is 25122163289. The reversal of 25122163255 is 55236122152.

It is a cyclic number.

It is not a de Polignac number, because 25122163255 - 2³ = 25122163247 is a prime.

It is a super-2 number, since 2×25122163255² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25122163255.

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, 1022115 + ... + 1046404.

It is an arithmetic number, because the mean of its divisors is an integer number (2159534880).

Almost surely, 2^25122163255 is an apocalyptic number.

25122163255 is a deficient number, since it is larger than the sum of its proper divisors (9430394825).

25122163255 is a wasteful number, since it uses less digits than its factorization.

25122163255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2068878.

The product of its digits is 36000, while the sum is 34.

The spelling of 25122163255 in words is "twenty-five billion, one hundred twenty-two million, one hundred sixty-three thousand, two hundred fifty-five".