25154013131 has 16 divisors (see below), whose sum is σ = 27816948768. Its totient is φ = 22602931200.

The previous prime is 25154013119. The next prime is 25154013169. The reversal of 25154013131 is 13131045152.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25154013131 is a prime.

It is a super-2 number, since 2×25154013131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25154013131.

It is not an unprimeable number, because it can be changed into a prime (25154016131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86585 + ... + 240426.

It is an arithmetic number, because the mean of its divisors is an integer number (1738559298).

Almost surely, 2^25154013131 is an apocalyptic number.

25154013131 is a deficient number, since it is larger than the sum of its proper divisors (2662935637).

25154013131 is a wasteful number, since it uses less digits than its factorization.

25154013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327182.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 25154013131 its reverse (13131045152), we get a palindrome (38285058283).

The spelling of 25154013131 in words is "twenty-five billion, one hundred fifty-four million, thirteen thousand, one hundred thirty-one".