25261702051 has 2 divisors, whose sum is σ = 25261702052. Its totient is φ = 25261702050.

The previous prime is 25261701979. The next prime is 25261702069. The reversal of 25261702051 is 15020716252.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25261702051 - 2⁷ = 25261701923 is a prime.

It is not a weakly prime, because it can be changed into another prime (25261702451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12630851025 + 12630851026.

It is an arithmetic number, because the mean of its divisors is an integer number (12630851026).

Almost surely, 2^25261702051 is an apocalyptic number.

25261702051 is a deficient number, since it is larger than the sum of its proper divisors (1).

25261702051 is an equidigital number, since it uses as much as digits as its factorization.

25261702051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 31.

The spelling of 25261702051 in words is "twenty-five billion, two hundred sixty-one million, seven hundred two thousand, fifty-one".