22425425 has 12 divisors (see below), whose sum is σ = 30335856. Its totient is φ = 16309200.

The previous prime is 22425383. The next prime is 22425427. The reversal of 22425425 is 52452422.

It is not a de Polignac number, because 22425425 - 2¹⁴ = 22409041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22425394 and 22425403.

It is not an unprimeable number, because it can be changed into a prime (22425427) 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 11 ways as a sum of consecutive naturals, for example, 40499 + ... + 41048.

It is an arithmetic number, because the mean of its divisors is an integer number (2527988).

Almost surely, 2^22425425 is an apocalyptic number.

22425425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22425425 is a deficient number, since it is larger than the sum of its proper divisors (7910431).

22425425 is a wasteful number, since it uses less digits than its factorization.

22425425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81568 (or 81563 counting only the distinct ones).

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

The square root of 22425425 is about 4735.5490705936. The cubic root of 22425425 is about 281.9985622716.

Adding to 22425425 its reverse (52452422), we get a palindrome (74877847).

It can be divided in two parts, 2242 and 5425, that added together give a palindrome (7667).

The spelling of 22425425 in words is "twenty-two million, four hundred twenty-five thousand, four hundred twenty-five".