25210112077 has 2 divisors, whose sum is σ = 25210112078. Its totient is φ = 25210112076.

The previous prime is 25210112041. The next prime is 25210112087. The reversal of 25210112077 is 77021101252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22054032036 + 3156080041 = 148506^2 + 56179^2 .

It is a cyclic number.

It is not a de Polignac number, because 25210112077 - 2³¹ = 23062628429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25210112017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12605056038 + 12605056039.

It is an arithmetic number, because the mean of its divisors is an integer number (12605056039).

Almost surely, 2^25210112077 is an apocalyptic number.

It is an amenable number.

25210112077 is a deficient number, since it is larger than the sum of its proper divisors (1).

25210112077 is an equidigital number, since it uses as much as digits as its factorization.

25210112077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1960, while the sum is 28.

The spelling of 25210112077 in words is "twenty-five billion, two hundred ten million, one hundred twelve thousand, seventy-seven".