22542425 has 48 divisors (see below), whose sum is σ = 32140800. Its totient is φ = 15590400.

The previous prime is 22542409. The next prime is 22542433. The reversal of 22542425 is 52424522.

It is not a de Polignac number, because 22542425 - 2⁴ = 22542409 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22542394 and 22542403.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 382046 + ... + 382104.

It is an arithmetic number, because the mean of its divisors is an integer number (669600).

Almost surely, 2^22542425 is an apocalyptic number.

22542425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22542425 is a deficient number, since it is larger than the sum of its proper divisors (9598375).

22542425 is a wasteful number, since it uses less digits than its factorization.

22542425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 141 counting only the distinct ones).

The product of its digits is 6400, while the sum is 26.

The square root of 22542425 is about 4747.8863718501. The cubic root of 22542425 is about 282.4881348294.

Adding to 22542425 its reverse (52424522), we get a palindrome (74966947).

The spelling of 22542425 in words is "twenty-two million, five hundred forty-two thousand, four hundred twenty-five".