25502142 has 32 divisors (see below), whose sum is σ = 56851200. Its totient is φ = 7579008.

The previous prime is 25502131. The next prime is 25502167. The reversal of 25502142 is 24120552.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4642 + ... + 8517.

It is an arithmetic number, because the mean of its divisors is an integer number (1776600).

Almost surely, 2^25502142 is an apocalyptic number.

25502142 is an abundant number, since it is smaller than the sum of its proper divisors (31349058).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25502142 is a wasteful number, since it uses less digits than its factorization.

25502142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13200.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 25502142 is about 5049.9645543310. The cubic root of 25502142 is about 294.3465070849.

Adding to 25502142 its reverse (24120552), we get a palindrome (49622694).

The spelling of 25502142 in words is "twenty-five million, five hundred two thousand, one hundred forty-two".