20550214 has 4 divisors (see below), whose sum is σ = 30825324. Its totient is φ = 10275106.

The previous prime is 20550209. The next prime is 20550217. The reversal of 20550214 is 41205502.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×20550214² = 844622590891592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20550191 and 20550200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20550217) by changing a digit.

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 as a sum of consecutive naturals, namely, 5137552 + ... + 5137555.

It is an arithmetic number, because the mean of its divisors is an integer number (7706331).

Almost surely, 2^20550214 is an apocalyptic number.

20550214 is a deficient number, since it is larger than the sum of its proper divisors (10275110).

20550214 is a wasteful number, since it uses less digits than its factorization.

20550214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10275109.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 20550214 is about 4533.2343861751. The cubic root of 20550214 is about 273.9084621498.

Adding to 20550214 its reverse (41205502), we get a palindrome (61755716).

The spelling of 20550214 in words is "twenty million, five hundred fifty thousand, two hundred fourteen".