25235322774121 has 2 divisors, whose sum is σ = 25235322774122. Its totient is φ = 25235322774120.

The previous prime is 25235322774041. The next prime is 25235322774139. The reversal of 25235322774121 is 12147722353252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20086217515225 + 5149105258896 = 4481765^2 + 2269164^2 .

It is a cyclic number.

It is not a de Polignac number, because 25235322774121 - 2¹⁵ = 25235322741353 is a prime.

It is not a weakly prime, because it can be changed into another prime (25235322774821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12617661387060 + 12617661387061.

It is an arithmetic number, because the mean of its divisors is an integer number (12617661387061).

Almost surely, 2^{25235322774121} is an apocalyptic number.

It is an amenable number.

25235322774121 is a deficient number, since it is larger than the sum of its proper divisors (1).

25235322774121 is an equidigital number, since it uses as much as digits as its factorization.

25235322774121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1411200, while the sum is 46.

The spelling of 25235322774121 in words is "twenty-five trillion, two hundred thirty-five billion, three hundred twenty-two million, seven hundred seventy-four thousand, one hundred twenty-one".