20055210255 has 32 divisors (see below), whose sum is σ = 35780656320. Its totient is φ = 10658027520.

The previous prime is 20055210251. The next prime is 20055210269. The reversal of 20055210255 is 55201255002.

20055210255 is a `hidden beast` number, since 2 + 0 + 0 + 552 + 102 + 5 + 5 = 666.

It is not a de Polignac number, because 20055210255 - 2² = 20055210251 is a prime.

It is a super-2 number, since 2×20055210255² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20055210251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 226402 + ... + 302271.

It is an arithmetic number, because the mean of its divisors is an integer number (1118145510).

Almost surely, 2^20055210255 is an apocalyptic number.

20055210255 is a deficient number, since it is larger than the sum of its proper divisors (15725446065).

20055210255 is a wasteful number, since it uses less digits than its factorization.

20055210255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528968 (or 528962 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

Adding to 20055210255 its reverse (55201255002), we get a palindrome (75256465257).

The spelling of 20055210255 in words is "twenty billion, fifty-five million, two hundred ten thousand, two hundred fifty-five".