25761157 has 2 divisors, whose sum is σ = 25761158. Its totient is φ = 25761156.

The previous prime is 25761133. The next prime is 25761181. The reversal of 25761157 is 75116752.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (25761133) and next prime (25761181).

It can be written as a sum of positive squares in only one way, i.e., 17926756 + 7834401 = 4234^2 + 2799^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25761157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25761107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12880578 + 12880579.

It is an arithmetic number, because the mean of its divisors is an integer number (12880579).

Almost surely, 2^25761157 is an apocalyptic number.

It is an amenable number.

25761157 is a deficient number, since it is larger than the sum of its proper divisors (1).

25761157 is an equidigital number, since it uses as much as digits as its factorization.

25761157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14700, while the sum is 34.

The square root of 25761157 is about 5075.5449953675. The cubic root of 25761157 is about 295.3396719415.

The spelling of 25761157 in words is "twenty-five million, seven hundred sixty-one thousand, one hundred fifty-seven".