22204550 has 48 divisors (see below), whose sum is σ = 44273952. Its totient is φ = 8256000.

The previous prime is 22204541. The next prime is 22204571. The reversal of 22204550 is 5540222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 128264 + ... + 128436.

It is an arithmetic number, because the mean of its divisors is an integer number (922374).

Almost surely, 2^22204550 is an apocalyptic number.

22204550 is a deficient number, since it is larger than the sum of its proper divisors (22069402).

22204550 is a wasteful number, since it uses less digits than its factorization.

22204550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353 (or 348 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 22204550 is about 4712.1704128777. The cubic root of 22204550 is about 281.0696753553.

Adding to 22204550 its reverse (5540222), we get a palindrome (27744772).

The spelling of 22204550 in words is "twenty-two million, two hundred four thousand, five hundred fifty".