25426559 has 2 divisors, whose sum is σ = 25426560. Its totient is φ = 25426558.

The previous prime is 25426553. The next prime is 25426561. The reversal of 25426559 is 95562452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25426559 - 2²⁴ = 8649343 is a prime.

Together with 25426561, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25426553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12713279 + 12713280.

It is an arithmetic number, because the mean of its divisors is an integer number (12713280).

Almost surely, 2^25426559 is an apocalyptic number.

25426559 is a deficient number, since it is larger than the sum of its proper divisors (1).

25426559 is an equidigital number, since it uses as much as digits as its factorization.

25426559 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 38.

The square root of 25426559 is about 5042.4754833316. The cubic root of 25426559 is about 294.0554255570.

The spelling of 25426559 in words is "twenty-five million, four hundred twenty-six thousand, five hundred fifty-nine".