22385425 has 12 divisors (see below), whose sum is σ = 27816796. Its totient is φ = 17870400.

The previous prime is 22385423. The next prime is 22385431. The reversal of 22385425 is 52458322.

It can be written as a sum of positive squares in 6 ways, for example, as 173056 + 22212369 = 416^2 + 4713^2 .

It is not a de Polignac number, because 22385425 - 2¹ = 22385423 is a prime.

It is a super-2 number, since 2×22385425² = 1002214504861250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22385423) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 21415 + ... + 22435.

Almost surely, 2^22385425 is an apocalyptic number.

22385425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22385425 is a deficient number, since it is larger than the sum of its proper divisors (5431371).

22385425 is a wasteful number, since it uses less digits than its factorization.

22385425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1908 (or 1903 counting only the distinct ones).

The product of its digits is 19200, while the sum is 31.

The square root of 22385425 is about 4731.3238105207. The cubic root of 22385425 is about 281.8307965059.

The spelling of 22385425 in words is "twenty-two million, three hundred eighty-five thousand, four hundred twenty-five".