20055226 has 4 divisors (see below), whose sum is σ = 30082842. Its totient is φ = 10027612.

The previous prime is 20055199. The next prime is 20055227. The reversal of 20055226 is 62255002.

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

It can be written as a sum of positive squares in only one way, i.e., 19053225 + 1002001 = 4365^2 + 1001^2 .

It is a super-2 number, since 2×20055226² = 804424179822152, which contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 20055197 and 20055206.

It is not an unprimeable number, because it can be changed into a prime (20055227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5013805 + ... + 5013808.

Almost surely, 2^20055226 is an apocalyptic number.

20055226 is a deficient number, since it is larger than the sum of its proper divisors (10027616).

20055226 is a wasteful number, since it uses less digits than its factorization.

20055226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10027615.

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

The square root of 20055226 is about 4478.3061530003. The cubic root of 20055226 is about 271.6913760923.

The spelling of 20055226 in words is "twenty million, fifty-five thousand, two hundred twenty-six".