25530422 has 16 divisors (see below), whose sum is σ = 39657600. Its totient is φ = 12313920.

The previous prime is 25530403. The next prime is 25530493. The reversal of 25530422 is 22403552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31154 + ... + 31962.

It is an arithmetic number, because the mean of its divisors is an integer number (2478600).

Almost surely, 2^25530422 is an apocalyptic number.

25530422 is a deficient number, since it is larger than the sum of its proper divisors (14127178).

25530422 is a wasteful number, since it uses less digits than its factorization.

25530422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 25530422 is about 5052.7637981604. The cubic root of 25530422 is about 294.4552697680.

Adding to 25530422 its reverse (22403552), we get a palindrome (47933974).

It can be divided in two parts, 25530 and 422, that added together give a palindrome (25952).

The spelling of 25530422 in words is "twenty-five million, five hundred thirty thousand, four hundred twenty-two".