25506992411 has 2 divisors, whose sum is σ = 25506992412. Its totient is φ = 25506992410.

The previous prime is 25506992279. The next prime is 25506992429. The reversal of 25506992411 is 11429960552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25506992411 - 2³⁴ = 8327123227 is a prime.

It is not a weakly prime, because it can be changed into another prime (25506992431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12753496205 + 12753496206.

It is an arithmetic number, because the mean of its divisors is an integer number (12753496206).

Almost surely, 2^25506992411 is an apocalyptic number.

25506992411 is a deficient number, since it is larger than the sum of its proper divisors (1).

25506992411 is an equidigital number, since it uses as much as digits as its factorization.

25506992411 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 25506992411 in words is "twenty-five billion, five hundred six million, nine hundred ninety-two thousand, four hundred eleven".