25004122 has 16 divisors (see below), whose sum is σ = 44063712. Its totient is φ = 10491120.

The previous prime is 25004117. The next prime is 25004129. The reversal of 25004122 is 22140052.

It is a super-2 number, since 2×25004122² = 1250412233981768, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 25004096 and 25004105.

It is not an unprimeable number, because it can be changed into a prime (25004129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43428 + ... + 43999.

It is an arithmetic number, because the mean of its divisors is an integer number (2753982).

Almost surely, 2^25004122 is an apocalyptic number.

25004122 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

25004122 is a deficient number, since it is larger than the sum of its proper divisors (19059590).

25004122 is a wasteful number, since it uses less digits than its factorization.

25004122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87453.

The product of its (nonzero) digits is 160, while the sum is 16.

The square root of 25004122 is about 5000.4121830105. The cubic root of 25004122 is about 292.4178433396.

Adding to 25004122 its reverse (22140052), we get a palindrome (47144174).

The spelling of 25004122 in words is "twenty-five million, four thousand, one hundred twenty-two".