25568545 has 4 divisors (see below), whose sum is σ = 30682260. Its totient is φ = 20454832.

The previous prime is 25568513. The next prime is 25568551. The reversal of 25568545 is 54586552.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12845056 + 12723489 = 3584^2 + 3567^2 .

It is a cyclic number.

It is not a de Polignac number, because 25568545 - 2⁵ = 25568513 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25568498 and 25568507.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2556850 + ... + 2556859.

It is an arithmetic number, because the mean of its divisors is an integer number (7670565).

Almost surely, 2^25568545 is an apocalyptic number.

It is an amenable number.

25568545 is a deficient number, since it is larger than the sum of its proper divisors (5113715).

25568545 is an equidigital number, since it uses as much as digits as its factorization.

25568545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5113714.

The product of its digits is 240000, while the sum is 40.

The square root of 25568545 is about 5056.5348807261. The cubic root of 25568545 is about 294.6017608238.

The spelling of 25568545 in words is "twenty-five million, five hundred sixty-eight thousand, five hundred forty-five".