22203025 has 24 divisors (see below), whose sum is σ = 30232440. Its totient is φ = 16074240.

The previous prime is 22203011. The next prime is 22203043. The reversal of 22203025 is 52030222.

It can be written as a sum of positive squares in 12 ways, for example, as 4157521 + 18045504 = 2039^2 + 4248^2 .

It is not a de Polignac number, because 22203025 - 2²¹ = 20105873 is a prime.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 16581 + ... + 17869.

It is an arithmetic number, because the mean of its divisors is an integer number (1259685).

Almost surely, 2^22203025 is an apocalyptic number.

22203025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

22203025 is a deficient number, since it is larger than the sum of its proper divisors (8029415).

22203025 is a wasteful number, since it uses less digits than its factorization.

22203025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1365 (or 1360 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 16.

The square root of 22203025 is about 4712.0085950686. The cubic root of 22203025 is about 281.0632406220.

Adding to 22203025 its reverse (52030222), we get a palindrome (74233247).

The spelling of 22203025 in words is "twenty-two million, two hundred three thousand, twenty-five".