25755797 has 2 divisors, whose sum is σ = 25755798. Its totient is φ = 25755796.

The previous prime is 25755781. The next prime is 25755803. The reversal of 25755797 is 79755752.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17380561 + 8375236 = 4169^2 + 2894^2 .

It is a cyclic number.

It is not a de Polignac number, because 25755797 - 2⁴ = 25755781 is a prime.

It is a super-2 number, since 2×25755797² = 1326722158210418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25755767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12877898 + 12877899.

It is an arithmetic number, because the mean of its divisors is an integer number (12877899).

Almost surely, 2^25755797 is an apocalyptic number.

It is an amenable number.

25755797 is a deficient number, since it is larger than the sum of its proper divisors (1).

25755797 is an equidigital number, since it uses as much as digits as its factorization.

25755797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 771750, while the sum is 47.

The square root of 25755797 is about 5075.0169457845. The cubic root of 25755797 is about 295.3191872192.

The spelling of 25755797 in words is "twenty-five million, seven hundred fifty-five thousand, seven hundred ninety-seven".