25371479231 has 8 divisors (see below), whose sum is σ = 29001896064. Its totient is φ = 21742542360.

The previous prime is 25371479227. The next prime is 25371479233. The reversal of 25371479231 is 13297417352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 25371479231 - 2² = 25371479227 is a prime.

It is a super-2 number, since 2×25371479231² (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 (25371479233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333005 + ... + 402038.

It is an arithmetic number, because the mean of its divisors is an integer number (3625237008).

Almost surely, 2^25371479231 is an apocalyptic number.

25371479231 is a deficient number, since it is larger than the sum of its proper divisors (3630416833).

25371479231 is an equidigital number, since it uses as much as digits as its factorization.

25371479231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739981.

The product of its digits is 317520, while the sum is 44.

The spelling of 25371479231 in words is "twenty-five billion, three hundred seventy-one million, four hundred seventy-nine thousand, two hundred thirty-one".