25762223195081 has 2 divisors, whose sum is σ = 25762223195082. Its totient is φ = 25762223195080.

The previous prime is 25762223195041. The next prime is 25762223195153. The reversal of 25762223195081 is 18059132226752.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25633563961600 + 128659233481 = 5062960^2 + 358691^2 .

It is a cyclic number.

It is not a de Polignac number, because 25762223195081 - 2¹⁸ = 25762222932937 is a prime.

It is a super-2 number, since 2×25762223195081² (a number of 28 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (25762223195021) 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, 12881111597540 + 12881111597541.

It is an arithmetic number, because the mean of its divisors is an integer number (12881111597541).

Almost surely, 2^{25762223195081} is an apocalyptic number.

It is an amenable number.

25762223195081 is a deficient number, since it is larger than the sum of its proper divisors (1).

25762223195081 is an equidigital number, since it uses as much as digits as its factorization.

25762223195081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3628800, while the sum is 53.

The spelling of 25762223195081 in words is "twenty-five trillion, seven hundred sixty-two billion, two hundred twenty-three million, one hundred ninety-five thousand, eighty-one".