22003425 has 36 divisors (see below), whose sum is σ = 41492880. Its totient is φ = 11115360.

The previous prime is 22003417. The next prime is 22003439. The reversal of 22003425 is 52430022.

It is not a de Polignac number, because 22003425 - 2³ = 22003417 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22003398 and 22003407.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1702 + ... + 6848.

It is an arithmetic number, because the mean of its divisors is an integer number (1152580).

Almost surely, 2^22003425 is an apocalyptic number.

22003425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22003425 is a deficient number, since it is larger than the sum of its proper divisors (19489455).

22003425 is a wasteful number, since it uses less digits than its factorization.

22003425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182 (or 5174 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 22003425 is about 4690.7808518412. The cubic root of 22003425 is about 280.2184731969.

Adding to 22003425 its reverse (52430022), we get a palindrome (74433447).

It can be divided in two parts, 2200 and 3425, that added together give a square (5625 = 75²).

The spelling of 22003425 in words is "twenty-two million, three thousand, four hundred twenty-five".