25132513031 has 4 divisors (see below), whose sum is σ = 25134870600. Its totient is φ = 25130155464.

The previous prime is 25132513019. The next prime is 25132513127. The reversal of 25132513031 is 13031523152.

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 25132513031 - 2⁶ = 25132512967 is a prime.

It is a super-2 number, since 2×25132513031² (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 (25132513001) 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, 1162721 + ... + 1184138.

It is an arithmetic number, because the mean of its divisors is an integer number (6283717650).

Almost surely, 2^25132513031 is an apocalyptic number.

25132513031 is a deficient number, since it is larger than the sum of its proper divisors (2357569).

25132513031 is a wasteful number, since it uses less digits than its factorization.

25132513031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357568.

The product of its (nonzero) digits is 2700, while the sum is 26.

The spelling of 25132513031 in words is "twenty-five billion, one hundred thirty-two million, five hundred thirteen thousand, thirty-one".