2120545055 has 4 divisors (see below), whose sum is σ = 2544654072. Its totient is φ = 1696436040.

The previous prime is 2120544991. The next prime is 2120545069. The reversal of 2120545055 is 5505450212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2120545055 - 2⁶ = 2120544991 is a prime.

It is a super-2 number, since 2×2120545055² = 8993422660569906050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212054501 + ... + 212054510.

It is an arithmetic number, because the mean of its divisors is an integer number (636163518).

Almost surely, 2^2120545055 is an apocalyptic number.

2120545055 is a deficient number, since it is larger than the sum of its proper divisors (424109017).

2120545055 is an equidigital number, since it uses as much as digits as its factorization.

2120545055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424109016.

The product of its (nonzero) digits is 10000, while the sum is 29.

The square root of 2120545055 is about 46049.3762715631. The cubic root of 2120545055 is about 1284.7417418178.

Adding to 2120545055 its reverse (5505450212), we get a palindrome (7625995267).

The spelling of 2120545055 in words is "two billion, one hundred twenty million, five hundred forty-five thousand, fifty-five".