25427563 has 16 divisors (see below), whose sum is σ = 30988224. Its totient is φ = 20367360.

The previous prime is 25427551. The next prime is 25427593. The reversal of 25427563 is 36572452.

It is not a de Polignac number, because 25427563 - 2⁵ = 25427531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25427513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18003 + ... + 19363.

It is an arithmetic number, because the mean of its divisors is an integer number (1936764).

Almost surely, 2^25427563 is an apocalyptic number.

25427563 is a deficient number, since it is larger than the sum of its proper divisors (5560661).

25427563 is a wasteful number, since it uses less digits than its factorization.

25427563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542.

The product of its digits is 50400, while the sum is 34.

The square root of 25427563 is about 5042.5750366256. The cubic root of 25427563 is about 294.0592958901.

The spelling of 25427563 in words is "twenty-five million, four hundred twenty-seven thousand, five hundred sixty-three".