25534589 has 2 divisors, whose sum is σ = 25534590. Its totient is φ = 25534588.

The previous prime is 25534573. The next prime is 25534603. The reversal of 25534589 is 98543552.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16949689 + 8584900 = 4117^2 + 2930^2 .

It is a cyclic number.

It is not a de Polignac number, because 25534589 - 2⁴ = 25534573 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25534519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12767294 + 12767295.

It is an arithmetic number, because the mean of its divisors is an integer number (12767295).

Almost surely, 2^25534589 is an apocalyptic number.

It is an amenable number.

25534589 is a deficient number, since it is larger than the sum of its proper divisors (1).

25534589 is an equidigital number, since it uses as much as digits as its factorization.

25534589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 41.

The square root of 25534589 is about 5053.1761299207. The cubic root of 25534589 is about 294.4712889360.

The spelling of 25534589 in words is "twenty-five million, five hundred thirty-four thousand, five hundred eighty-nine".