25196797 has 2 divisors, whose sum is σ = 25196798. Its totient is φ = 25196796.

The previous prime is 25196761. The next prime is 25196803. The reversal of 25196797 is 79769152.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15888196 + 9308601 = 3986^2 + 3051^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25196797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25190797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12598398 + 12598399.

It is an arithmetic number, because the mean of its divisors is an integer number (12598399).

Almost surely, 2^25196797 is an apocalyptic number.

It is an amenable number.

25196797 is a deficient number, since it is larger than the sum of its proper divisors (1).

25196797 is an equidigital number, since it uses as much as digits as its factorization.

25196797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 238140, while the sum is 46.

The square root of 25196797 is about 5019.6411226302. The cubic root of 25196797 is about 293.1670199034.

It can be divided in two parts, 2519 and 6797, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 25196797 in words is "twenty-five million, one hundred ninety-six thousand, seven hundred ninety-seven".