25524605626081 has 2 divisors, whose sum is σ = 25524605626082. Its totient is φ = 25524605626080.

The previous prime is 25524605626063. The next prime is 25524605626129. The reversal of 25524605626081 is 18062650642552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18835244121681 + 6689361504400 = 4339959^2 + 2586380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25524605626081 is a prime.

It is a super-2 number, since 2×25524605626081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (25524605626781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12762302813040 + 12762302813041.

It is an arithmetic number, because the mean of its divisors is an integer number (12762302813041).

Almost surely, 2^{25524605626081} is an apocalyptic number.

It is an amenable number.

25524605626081 is a deficient number, since it is larger than the sum of its proper divisors (1).

25524605626081 is an equidigital number, since it uses as much as digits as its factorization.

25524605626081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912000, while the sum is 52.

The spelling of 25524605626081 in words is "twenty-five trillion, five hundred twenty-four billion, six hundred five million, six hundred twenty-six thousand, eighty-one".