25553231051 has 2 divisors, whose sum is σ = 25553231052. Its totient is φ = 25553231050.

The previous prime is 25553231027. The next prime is 25553231057. The reversal of 25553231051 is 15013235552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25553231051 - 2³⁰ = 24479489227 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 25553230999 and 25553231017.

It is not a weakly prime, because it can be changed into another prime (25553231057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12776615525 + 12776615526.

It is an arithmetic number, because the mean of its divisors is an integer number (12776615526).

Almost surely, 2^25553231051 is an apocalyptic number.

25553231051 is a deficient number, since it is larger than the sum of its proper divisors (1).

25553231051 is an equidigital number, since it uses as much as digits as its factorization.

25553231051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 25553231051 in words is "twenty-five billion, five hundred fifty-three million, two hundred thirty-one thousand, fifty-one".