25288514231 has 4 divisors (see below), whose sum is σ = 25291402272. Its totient is φ = 25285626192.

The previous prime is 25288514149. The next prime is 25288514249. The reversal of 25288514231 is 13241588252.

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

It is a cyclic number.

It is not a de Polignac number, because 25288514231 - 2²⁶ = 25221405367 is a prime.

It is a super-2 number, since 2×25288514231² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25288510231) 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, 1430846 + ... + 1448411.

It is an arithmetic number, because the mean of its divisors is an integer number (6322850568).

Almost surely, 2^25288514231 is an apocalyptic number.

25288514231 is a deficient number, since it is larger than the sum of its proper divisors (2888041).

25288514231 is an equidigital number, since it uses as much as digits as its factorization.

25288514231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888040.

The product of its digits is 153600, while the sum is 41.

The spelling of 25288514231 in words is "twenty-five billion, two hundred eighty-eight million, five hundred fourteen thousand, two hundred thirty-one".