25486957 has 2 divisors, whose sum is σ = 25486958. Its totient is φ = 25486956.

The previous prime is 25486949. The next prime is 25486987. The reversal of 25486957 is 75968452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20738916 + 4748041 = 4554^2 + 2179^2 .

It is a cyclic number.

It is not a de Polignac number, because 25486957 - 2³ = 25486949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25486907) 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, 12743478 + 12743479.

It is an arithmetic number, because the mean of its divisors is an integer number (12743479).

Almost surely, 2^25486957 is an apocalyptic number.

It is an amenable number.

25486957 is a deficient number, since it is larger than the sum of its proper divisors (1).

25486957 is an equidigital number, since it uses as much as digits as its factorization.

25486957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 604800, while the sum is 46.

The square root of 25486957 is about 5048.4608545576. The cubic root of 25486957 is about 294.2880735731.

The spelling of 25486957 in words is "twenty-five million, four hundred eighty-six thousand, nine hundred fifty-seven".