20554022 has 8 divisors (see below), whose sum is σ = 31104216. Its totient is φ = 10185952.

The previous prime is 20554013. The next prime is 20554049. The reversal of 20554022 is 22045502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20553985 and 20554003.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 45248 + ... + 45699.

It is an arithmetic number, because the mean of its divisors is an integer number (3888027).

Almost surely, 2^20554022 is an apocalyptic number.

20554022 is a deficient number, since it is larger than the sum of its proper divisors (10550194).

20554022 is a wasteful number, since it uses less digits than its factorization.

20554022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91062.

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

The square root of 20554022 is about 4533.6543758871. The cubic root of 20554022 is about 273.9253797191.

Adding to 20554022 its reverse (22045502), we get a palindrome (42599524).

The spelling of 20554022 in words is "twenty million, five hundred fifty-four thousand, twenty-two".