25659061 has 2 divisors, whose sum is σ = 25659062. Its totient is φ = 25659060.

The previous prime is 25659047. The next prime is 25659083. The reversal of 25659061 is 16095652.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25310961 + 348100 = 5031^2 + 590^2 .

It is a cyclic number.

It is not a de Polignac number, because 25659061 - 2¹¹ = 25657013 is a prime.

It is a super-2 number, since 2×25659061² = 1316774822803442, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25659031) 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, 12829530 + 12829531.

It is an arithmetic number, because the mean of its divisors is an integer number (12829531).

Almost surely, 2^25659061 is an apocalyptic number.

It is an amenable number.

25659061 is a deficient number, since it is larger than the sum of its proper divisors (1).

25659061 is an equidigital number, since it uses as much as digits as its factorization.

25659061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16200, while the sum is 34.

The square root of 25659061 is about 5065.4773713837. The cubic root of 25659061 is about 294.9489943416.

The spelling of 25659061 in words is "twenty-five million, six hundred fifty-nine thousand, sixty-one".