25464559 has 2 divisors, whose sum is σ = 25464560. Its totient is φ = 25464558.

The previous prime is 25464499. The next prime is 25464583. The reversal of 25464559 is 95546452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25464559 - 2¹⁹ = 24940271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25464599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12732279 + 12732280.

It is an arithmetic number, because the mean of its divisors is an integer number (12732280).

Almost surely, 2^25464559 is an apocalyptic number.

25464559 is a deficient number, since it is larger than the sum of its proper divisors (1).

25464559 is an equidigital number, since it uses as much as digits as its factorization.

25464559 is an evil number, because the sum of its binary digits is even.

The product of its digits is 216000, while the sum is 40.

The square root of 25464559 is about 5046.2420671228. The cubic root of 25464559 is about 294.2018412821.

The spelling of 25464559 in words is "twenty-five million, four hundred sixty-four thousand, five hundred fifty-nine".