25253123 has 4 divisors (see below), whose sum is σ = 28860720. Its totient is φ = 21645528.

The previous prime is 25253117. The next prime is 25253159. The reversal of 25253123 is 32135252.

25253123 is nontrivially palindromic in base 2.

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 25253123 - 2⁸ = 25252867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25253923) 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, 1803788 + ... + 1803801.

It is an arithmetic number, because the mean of its divisors is an integer number (7215180).

Almost surely, 2^25253123 is an apocalyptic number.

25253123 is a deficient number, since it is larger than the sum of its proper divisors (3607597).

25253123 is an equidigital number, since it uses as much as digits as its factorization.

25253123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3607596.

The product of its digits is 1800, while the sum is 23.

The square root of 25253123 is about 5025.2485510669. The cubic root of 25253123 is about 293.3853100331.

Adding to 25253123 its reverse (32135252), we get a palindrome (57388375).

The spelling of 25253123 in words is "twenty-five million, two hundred fifty-three thousand, one hundred twenty-three".