25316957 has 2 divisors, whose sum is σ = 25316958. Its totient is φ = 25316956.

The previous prime is 25316947. The next prime is 25316983. The reversal of 25316957 is 75961352.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19061956 + 6255001 = 4366^2 + 2501^2 .

It is a cyclic number.

It is not a de Polignac number, because 25316957 - 2⁸ = 25316701 is a prime.

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 25316957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25316947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12658478 + 12658479.

It is an arithmetic number, because the mean of its divisors is an integer number (12658479).

Almost surely, 2^25316957 is an apocalyptic number.

It is an amenable number.

25316957 is a deficient number, since it is larger than the sum of its proper divisors (1).

25316957 is an equidigital number, since it uses as much as digits as its factorization.

25316957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56700, while the sum is 38.

The square root of 25316957 is about 5031.5958700993. The cubic root of 25316957 is about 293.6323052270.

The spelling of 25316957 in words is "twenty-five million, three hundred sixteen thousand, nine hundred fifty-seven".