25605059 has 2 divisors, whose sum is σ = 25605060. Its totient is φ = 25605058.

The previous prime is 25605037. The next prime is 25605067. The reversal of 25605059 is 95050652.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25605059 - 2¹⁶ = 25539523 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25605089) 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, 12802529 + 12802530.

It is an arithmetic number, because the mean of its divisors is an integer number (12802530).

Almost surely, 2^25605059 is an apocalyptic number.

25605059 is a deficient number, since it is larger than the sum of its proper divisors (1).

25605059 is an equidigital number, since it uses as much as digits as its factorization.

25605059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13500, while the sum is 32.

The square root of 25605059 is about 5060.1441679067. The cubic root of 25605059 is about 294.7419326910.

The spelling of 25605059 in words is "twenty-five million, six hundred five thousand, fifty-nine".