25932014431 has 4 divisors (see below), whose sum is σ = 26076886200. Its totient is φ = 25787142664.

The previous prime is 25932014357. The next prime is 25932014441. The reversal of 25932014431 is 13441023952.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25932014431 is a prime.

It is a super-2 number, since 2×25932014431² (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 (25932014441) 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, 72435616 + ... + 72435973.

It is an arithmetic number, because the mean of its divisors is an integer number (6519221550).

Almost surely, 2^25932014431 is an apocalyptic number.

25932014431 is a deficient number, since it is larger than the sum of its proper divisors (144871769).

25932014431 is a wasteful number, since it uses less digits than its factorization.

25932014431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144871768.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 25932014431 in words is "twenty-five billion, nine hundred thirty-two million, fourteen thousand, four hundred thirty-one".