20600055 has 32 divisors (see below), whose sum is σ = 41856000. Its totient is φ = 9416736.

The previous prime is 20600051. The next prime is 20600057. The reversal of 20600055 is 55000602.

It is not a de Polignac number, because 20600055 - 2² = 20600051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20600051) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9955 + ... + 11844.

It is an arithmetic number, because the mean of its divisors is an integer number (1308000).

Almost surely, 2^20600055 is an apocalyptic number.

20600055 is an abundant number, since it is smaller than the sum of its proper divisors (21255945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20600055 is a wasteful number, since it uses less digits than its factorization.

20600055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21820 (or 21814 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 20600055 is about 4538.7283461340. The cubic root of 20600055 is about 274.1297226155.

Adding to 20600055 its reverse (55000602), we get a palindrome (75600657).

The spelling of 20600055 in words is "twenty million, six hundred thousand, fifty-five".