25442083831 has 2 divisors, whose sum is σ = 25442083832. Its totient is φ = 25442083830.

The previous prime is 25442083783. The next prime is 25442083841. The reversal of 25442083831 is 13838024452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25442083831 - 2⁹ = 25442083319 is a prime.

It is a super-2 number, since 2×25442083831² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25442083841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12721041915 + 12721041916.

It is an arithmetic number, because the mean of its divisors is an integer number (12721041916).

Almost surely, 2^25442083831 is an apocalyptic number.

25442083831 is a deficient number, since it is larger than the sum of its proper divisors (1).

25442083831 is an equidigital number, since it uses as much as digits as its factorization.

25442083831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 184320, while the sum is 40.

The spelling of 25442083831 in words is "twenty-five billion, four hundred forty-two million, eighty-three thousand, eight hundred thirty-one".