20005450255 has 96 divisors (see below), whose sum is σ = 30522728448. Its totient is φ = 12511699200.

The previous prime is 20005450249. The next prime is 20005450259. The reversal of 20005450255 is 55205450002.

It is a de Polignac number, because none of the positive numbers 2^k-20005450255 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20005450259) 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 95 ways as a sum of consecutive naturals, for example, 12401829 + ... + 12403441.

It is an arithmetic number, because the mean of its divisors is an integer number (317945088).

Almost surely, 2^20005450255 is an apocalyptic number.

20005450255 is a deficient number, since it is larger than the sum of its proper divisors (10517278193).

20005450255 is a wasteful number, since it uses less digits than its factorization.

20005450255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757 (or 1750 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 28.

The spelling of 20005450255 in words is "twenty billion, five million, four hundred fifty thousand, two hundred fifty-five".