25675563 has 4 divisors (see below), whose sum is σ = 34234088. Its totient is φ = 17117040.

The previous prime is 25675549. The next prime is 25675579. The reversal of 25675563 is 36557652.

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

It is not a de Polignac number, because 25675563 - 2⁴ = 25675547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25675523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4279258 + ... + 4279263.

It is an arithmetic number, because the mean of its divisors is an integer number (8558522).

Almost surely, 2^25675563 is an apocalyptic number.

25675563 is a deficient number, since it is larger than the sum of its proper divisors (8558525).

25675563 is an equidigital number, since it uses as much as digits as its factorization.

25675563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8558524.

The product of its digits is 189000, while the sum is 39.

The square root of 25675563 is about 5067.1059787614. The cubic root of 25675563 is about 295.0122105450.

The spelling of 25675563 in words is "twenty-five million, six hundred seventy-five thousand, five hundred sixty-three".