25022512331881 has 2 divisors, whose sum is σ = 25022512331882. Its totient is φ = 25022512331880.

The previous prime is 25022512331833. The next prime is 25022512332007. The reversal of 25022512331881 is 18813321522052.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25011651357225 + 10860974656 = 5001165^2 + 104216^2 .

It is a cyclic number.

It is not a de Polignac number, because 25022512331881 - 2²⁹ = 25021975460969 is a prime.

It is a super-2 number, since 2×25022512331881² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25022512331281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12511256165940 + 12511256165941.

It is an arithmetic number, because the mean of its divisors is an integer number (12511256165941).

Almost surely, 2^{25022512331881} is an apocalyptic number.

It is an amenable number.

25022512331881 is a deficient number, since it is larger than the sum of its proper divisors (1).

25022512331881 is an equidigital number, since it uses as much as digits as its factorization.

25022512331881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 43.

The spelling of 25022512331881 in words is "twenty-five trillion, twenty-two billion, five hundred twelve million, three hundred thirty-one thousand, eight hundred eighty-one".