25790563 has 2 divisors, whose sum is σ = 25790564. Its totient is φ = 25790562.

The previous prime is 25790561. The next prime is 25790573. The reversal of 25790563 is 36509752.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 25790563 - 2¹ = 25790561 is a prime.

Together with 25790561, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (25790561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12895281 + 12895282.

It is an arithmetic number, because the mean of its divisors is an integer number (12895282).

Almost surely, 2^25790563 is an apocalyptic number.

25790563 is a deficient number, since it is larger than the sum of its proper divisors (1).

25790563 is an equidigital number, since it uses as much as digits as its factorization.

25790563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56700, while the sum is 37.

The square root of 25790563 is about 5078.4410009372. The cubic root of 25790563 is about 295.4520045770.

The spelling of 25790563 in words is "twenty-five million, seven hundred ninety thousand, five hundred sixty-three".