25631288275 has 12 divisors (see below), whose sum is σ = 31796458200. Its totient is φ = 20496217280.

The previous prime is 25631288261. The next prime is 25631288279. The reversal of 25631288275 is 57288213652.

It is not a de Polignac number, because 25631288275 - 2²¹ = 25629191123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25631288279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160690 + ... + 277639.

It is an arithmetic number, because the mean of its divisors is an integer number (2649704850).

Almost surely, 2^25631288275 is an apocalyptic number.

25631288275 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25631288275 is a deficient number, since it is larger than the sum of its proper divisors (6165169925).

25631288275 is a wasteful number, since it uses less digits than its factorization.

25631288275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440678 (or 440673 counting only the distinct ones).

The product of its digits is 1612800, while the sum is 49.

The spelling of 25631288275 in words is "twenty-five billion, six hundred thirty-one million, two hundred eighty-eight thousand, two hundred seventy-five".