22113425 has 6 divisors (see below), whose sum is σ = 27420678. Its totient is φ = 17690720.

The previous prime is 22113409. The next prime is 22113439. The reversal of 22113425 is 52431122.

It can be written as a sum of positive squares in 3 ways, for example, as 61009 + 22052416 = 247^2 + 4696^2 .

It is not a de Polignac number, because 22113425 - 2⁴ = 22113409 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22113397 and 22113406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 442244 + ... + 442293.

It is an arithmetic number, because the mean of its divisors is an integer number (4570113).

Almost surely, 2^22113425 is an apocalyptic number.

22113425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22113425 is a deficient number, since it is larger than the sum of its proper divisors (5307253).

22113425 is an equidigital number, since it uses as much as digits as its factorization.

22113425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884547 (or 884542 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 22113425 is about 4702.4913609703. The cubic root of 22113425 is about 280.6846553004.

Adding to 22113425 its reverse (52431122), we get a palindrome (74544547).

The spelling of 22113425 in words is "twenty-two million, one hundred thirteen thousand, four hundred twenty-five".