20200550 has 12 divisors (see below), whose sum is σ = 37573116. Its totient is φ = 8080200.

The previous prime is 20200549. The next prime is 20200589. The reversal of 20200550 is 5500202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 201956 + ... + 202055.

It is an arithmetic number, because the mean of its divisors is an integer number (3131093).

Almost surely, 2^20200550 is an apocalyptic number.

20200550 is a deficient number, since it is larger than the sum of its proper divisors (17372566).

20200550 is a wasteful number, since it uses less digits than its factorization.

20200550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404023 (or 404018 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 14.

The square root of 20200550 is about 4494.5021971293. The cubic root of 20200550 is about 272.3460398995.

Adding to 20200550 its reverse (5500202), we get a palindrome (25700752).

The spelling of 20200550 in words is "twenty million, two hundred thousand, five hundred fifty".