25560123 has 4 divisors (see below), whose sum is σ = 34080168. Its totient is φ = 17040080.

The previous prime is 25560109. The next prime is 25560127. The reversal of 25560123 is 32106552.

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

It is a cyclic number.

It is not a de Polignac number, because 25560123 - 2⁵ = 25560091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25560093 and 25560102.

It is not an unprimeable number, because it can be changed into a prime (25560127) 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, 4260018 + ... + 4260023.

It is an arithmetic number, because the mean of its divisors is an integer number (8520042).

Almost surely, 2^25560123 is an apocalyptic number.

25560123 is a deficient number, since it is larger than the sum of its proper divisors (8520045).

25560123 is an equidigital number, since it uses as much as digits as its factorization.

25560123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8520044.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 25560123 is about 5055.7020284032. The cubic root of 25560123 is about 294.5694110688.

Adding to 25560123 its reverse (32106552), we get a palindrome (57666675).

It can be divided in two parts, 255 and 60123, that added together give a triangular number (60378 = T₃₄₇).

The spelling of 25560123 in words is "twenty-five million, five hundred sixty thousand, one hundred twenty-three".