25775144719 has 2 divisors, whose sum is σ = 25775144720. Its totient is φ = 25775144718.

The previous prime is 25775144713. The next prime is 25775144743. The reversal of 25775144719 is 91744157752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25775144719 - 2⁵ = 25775144687 is a prime.

It is a super-2 number, since 2×25775144719² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25775144713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12887572359 + 12887572360.

It is an arithmetic number, because the mean of its divisors is an integer number (12887572360).

Almost surely, 2^25775144719 is an apocalyptic number.

25775144719 is a deficient number, since it is larger than the sum of its proper divisors (1).

25775144719 is an equidigital number, since it uses as much as digits as its factorization.

25775144719 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2469600, while the sum is 52.

The spelling of 25775144719 in words is "twenty-five billion, seven hundred seventy-five million, one hundred forty-four thousand, seven hundred nineteen".