25826563 has 8 divisors (see below), whose sum is σ = 29558528. Its totient is φ = 22105224.

The previous prime is 25826561. The next prime is 25826573. The reversal of 25826563 is 36562852.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25826563 - 2¹ = 25826561 is a prime.

It is a super-2 number, since 2×25826563² = 1334022712785938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25826561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3520 + ... + 8002.

It is an arithmetic number, because the mean of its divisors is an integer number (3694816).

Almost surely, 2^25826563 is an apocalyptic number.

25826563 is a deficient number, since it is larger than the sum of its proper divisors (3731965).

25826563 is an equidigital number, since it uses as much as digits as its factorization.

25826563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5313.

The product of its digits is 86400, while the sum is 37.

The square root of 25826563 is about 5081.9841597549. The cubic root of 25826563 is about 295.5894104838.

The spelling of 25826563 in words is "twenty-five million, eight hundred twenty-six thousand, five hundred sixty-three".