25312224542431 has 2 divisors, whose sum is σ = 25312224542432. Its totient is φ = 25312224542430.

The previous prime is 25312224542387. The next prime is 25312224542453. The reversal of 25312224542431 is 13424542221352.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25312224542431 is a prime.

It is a super-2 number, since 2×25312224542431² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25312224542491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12656112271215 + 12656112271216.

It is an arithmetic number, because the mean of its divisors is an integer number (12656112271216).

Almost surely, 2^{25312224542431} is an apocalyptic number.

25312224542431 is a deficient number, since it is larger than the sum of its proper divisors (1).

25312224542431 is an equidigital number, since it uses as much as digits as its factorization.

25312224542431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 460800, while the sum is 40.

Adding to 25312224542431 its reverse (13424542221352), we get a palindrome (38736766763783).

The spelling of 25312224542431 in words is "twenty-five trillion, three hundred twelve billion, two hundred twenty-four million, five hundred forty-two thousand, four hundred thirty-one".