25195057 has 2 divisors, whose sum is σ = 25195058. Its totient is φ = 25195056.

The previous prime is 25194977. The next prime is 25195063. The reversal of 25195057 is 75059152.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25090081 + 104976 = 5009^2 + 324^2 .

It is a cyclic number.

It is not a de Polignac number, because 25195057 - 2¹¹ = 25193009 is a prime.

It is not a weakly prime, because it can be changed into another prime (25105057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12597528 + 12597529.

It is an arithmetic number, because the mean of its divisors is an integer number (12597529).

Almost surely, 2^25195057 is an apocalyptic number.

It is an amenable number.

25195057 is a deficient number, since it is larger than the sum of its proper divisors (1).

25195057 is an equidigital number, since it uses as much as digits as its factorization.

25195057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 25195057 is about 5019.4678004745. The cubic root of 25195057 is about 293.1602713954.

The spelling of 25195057 in words is "twenty-five million, one hundred ninety-five thousand, fifty-seven".