25432559 has 2 divisors, whose sum is σ = 25432560. Its totient is φ = 25432558.

The previous prime is 25432553. The next prime is 25432567. The reversal of 25432559 is 95523452.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25432559 - 2²⁴ = 8655343 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25432553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12716279 + 12716280.

It is an arithmetic number, because the mean of its divisors is an integer number (12716280).

Almost surely, 2^25432559 is an apocalyptic number.

25432559 is a deficient number, since it is larger than the sum of its proper divisors (1).

25432559 is an equidigital number, since it uses as much as digits as its factorization.

25432559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54000, while the sum is 35.

The square root of 25432559 is about 5043.0703941151. The cubic root of 25432559 is about 294.0785535232.

The spelling of 25432559 in words is "twenty-five million, four hundred thirty-two thousand, five hundred fifty-nine".