25427125031 has 24 divisors (see below), whose sum is σ = 32331188880. Its totient is φ = 19774204800.

The previous prime is 25427125007. The next prime is 25427125033. The reversal of 25427125031 is 13052172452.

It is not a de Polignac number, because 25427125031 - 2¹⁸ = 25426862887 is a prime.

It is a super-2 number, since 2×25427125031² (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 (25427125033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 228011 + ... + 320691.

It is an arithmetic number, because the mean of its divisors is an integer number (1347132870).

Almost surely, 2^25427125031 is an apocalyptic number.

25427125031 is a deficient number, since it is larger than the sum of its proper divisors (6904063849).

25427125031 is a wasteful number, since it uses less digits than its factorization.

25427125031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93215 (or 93208 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

Adding to 25427125031 its reverse (13052172452), we get a palindrome (38479297483).

The spelling of 25427125031 in words is "twenty-five billion, four hundred twenty-seven million, one hundred twenty-five thousand, thirty-one".