25256653 has 2 divisors, whose sum is σ = 25256654. Its totient is φ = 25256652.

The previous prime is 25256641. The next prime is 25256659. The reversal of 25256653 is 35665252.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24621444 + 635209 = 4962^2 + 797^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25256653 is a prime.

It is a super-3 number, since 3×25256653³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25256659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12628326 + 12628327.

It is an arithmetic number, because the mean of its divisors is an integer number (12628327).

Almost surely, 2^25256653 is an apocalyptic number.

It is an amenable number.

25256653 is a deficient number, since it is larger than the sum of its proper divisors (1).

25256653 is an equidigital number, since it uses as much as digits as its factorization.

25256653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54000, while the sum is 34.

The square root of 25256653 is about 5025.5997652022. The cubic root of 25256653 is about 293.3989796545.

The spelling of 25256653 in words is "twenty-five million, two hundred fifty-six thousand, six hundred fifty-three".