20226550 has 12 divisors (see below), whose sum is σ = 37621476. Its totient is φ = 8090600.

The previous prime is 20226529. The next prime is 20226587. The reversal of 20226550 is 5562202.

It is a super-2 number, since 2×20226550² = 818226649805000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 202216 + ... + 202315.

It is an arithmetic number, because the mean of its divisors is an integer number (3135123).

Almost surely, 2^20226550 is an apocalyptic number.

20226550 is a deficient number, since it is larger than the sum of its proper divisors (17394926).

20226550 is a wasteful number, since it uses less digits than its factorization.

20226550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404543 (or 404538 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 20226550 is about 4497.3936896829. The cubic root of 20226550 is about 272.4628347597.

Adding to 20226550 its reverse (5562202), we get a palindrome (25788752).

The spelling of 20226550 in words is "twenty million, two hundred twenty-six thousand, five hundred fifty".