25131302051 has 2 divisors, whose sum is σ = 25131302052. Its totient is φ = 25131302050.

The previous prime is 25131301999. The next prime is 25131302059. The reversal of 25131302051 is 15020313152.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25131302051 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (25131302059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12565651025 + 12565651026.

It is an arithmetic number, because the mean of its divisors is an integer number (12565651026).

Almost surely, 2^25131302051 is an apocalyptic number.

25131302051 is a deficient number, since it is larger than the sum of its proper divisors (1).

25131302051 is an equidigital number, since it uses as much as digits as its factorization.

25131302051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 25131302051 in words is "twenty-five billion, one hundred thirty-one million, three hundred two thousand, fifty-one".