25632559 has 2 divisors, whose sum is σ = 25632560. Its totient is φ = 25632558.

The previous prime is 25632553. The next prime is 25632571. The reversal of 25632559 is 95523652.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25632559 - 2¹¹ = 25630511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25632553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12816279 + 12816280.

It is an arithmetic number, because the mean of its divisors is an integer number (12816280).

Almost surely, 2^25632559 is an apocalyptic number.

25632559 is a deficient number, since it is larger than the sum of its proper divisors (1).

25632559 is an equidigital number, since it uses as much as digits as its factorization.

25632559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 37.

The square root of 25632559 is about 5062.8607525785. The cubic root of 25632559 is about 294.8474131891.

The spelling of 25632559 in words is "twenty-five million, six hundred thirty-two thousand, five hundred fifty-nine".