25486457 has 2 divisors, whose sum is σ = 25486458. Its totient is φ = 25486456.

The previous prime is 25486411. The next prime is 25486469. The reversal of 25486457 is 75468452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25441936 + 44521 = 5044^2 + 211^2 .

It is a cyclic number.

It is not a de Polignac number, because 25486457 - 2¹⁸ = 25224313 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25486477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12743228 + 12743229.

It is an arithmetic number, because the mean of its divisors is an integer number (12743229).

Almost surely, 2^25486457 is an apocalyptic number.

It is an amenable number.

25486457 is a deficient number, since it is larger than the sum of its proper divisors (1).

25486457 is an equidigital number, since it uses as much as digits as its factorization.

25486457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 268800, while the sum is 41.

The square root of 25486457 is about 5048.4113342714. The cubic root of 25486457 is about 294.2861491248.

The spelling of 25486457 in words is "twenty-five million, four hundred eighty-six thousand, four hundred fifty-seven".