20056550 has 24 divisors (see below), whose sum is σ = 37441056. Its totient is φ = 7993440.

The previous prime is 20056523. The next prime is 20056559. The reversal of 20056550 is 5565002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20056559) 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 in 11 ways as a sum of consecutive naturals, for example, 17804 + ... + 18896.

It is an arithmetic number, because the mean of its divisors is an integer number (1560044).

Almost surely, 2^20056550 is an apocalyptic number.

20056550 is a deficient number, since it is larger than the sum of its proper divisors (17384506).

20056550 is a wasteful number, since it uses less digits than its factorization.

20056550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1472 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 23.

The square root of 20056550 is about 4478.4539743085. The cubic root of 20056550 is about 271.6973547745.

The spelling of 20056550 in words is "twenty million, fifty-six thousand, five hundred fifty".