25105151051 has 2 divisors, whose sum is σ = 25105151052. Its totient is φ = 25105151050.

The previous prime is 25105151039. The next prime is 25105151053. The reversal of 25105151051 is 15015150152.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25105151051 is a prime.

Together with 25105151053, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25105151051.

It is not a weakly prime, because it can be changed into another prime (25105151053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12552575525 + 12552575526.

It is an arithmetic number, because the mean of its divisors is an integer number (12552575526).

Almost surely, 2^25105151051 is an apocalyptic number.

25105151051 is a deficient number, since it is larger than the sum of its proper divisors (1).

25105151051 is an equidigital number, since it uses as much as digits as its factorization.

25105151051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1250, while the sum is 26.

The spelling of 25105151051 in words is "twenty-five billion, one hundred five million, one hundred fifty-one thousand, fifty-one".