25461589 has 2 divisors, whose sum is σ = 25461590. Its totient is φ = 25461588.

The previous prime is 25461551. The next prime is 25461593. The reversal of 25461589 is 98516452.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25150225 + 311364 = 5015^2 + 558^2 .

It is a cyclic number.

It is not a de Polignac number, because 25461589 - 2¹¹ = 25459541 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 (25461389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12730794 + 12730795.

It is an arithmetic number, because the mean of its divisors is an integer number (12730795).

Almost surely, 2^25461589 is an apocalyptic number.

It is an amenable number.

25461589 is a deficient number, since it is larger than the sum of its proper divisors (1).

25461589 is an equidigital number, since it uses as much as digits as its factorization.

25461589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 40.

The square root of 25461589 is about 5045.9477801499. The cubic root of 25461589 is about 294.1904029868.

The spelling of 25461589 in words is "twenty-five million, four hundred sixty-one thousand, five hundred eighty-nine".