25195750051 has 2 divisors, whose sum is σ = 25195750052. Its totient is φ = 25195750050.

The previous prime is 25195750037. The next prime is 25195750067. The reversal of 25195750051 is 15005759152.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25195750051 - 2¹⁷ = 25195618979 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25195749986 and 25195750013.

It is not a weakly prime, because it can be changed into another prime (25195750001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12597875025 + 12597875026.

It is an arithmetic number, because the mean of its divisors is an integer number (12597875026).

Almost surely, 2^25195750051 is an apocalyptic number.

25195750051 is a deficient number, since it is larger than the sum of its proper divisors (1).

25195750051 is an equidigital number, since it uses as much as digits as its factorization.

25195750051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 78750, while the sum is 40.

The spelling of 25195750051 in words is "twenty-five billion, one hundred ninety-five million, seven hundred fifty thousand, fifty-one".