2158545055 has 16 divisors (see below), whose sum is σ = 2712533184. Its totient is φ = 1645853440.

The previous prime is 2158545049. The next prime is 2158545071. The reversal of 2158545055 is 5505458512.

It is not a de Polignac number, because 2158545055 - 2⁹ = 2158544543 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2158544999 and 2158545017.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1084 + ... + 65713.

It is an arithmetic number, because the mean of its divisors is an integer number (169533324).

Almost surely, 2^2158545055 is an apocalyptic number.

2158545055 is a deficient number, since it is larger than the sum of its proper divisors (553988129).

2158545055 is a wasteful number, since it uses less digits than its factorization.

2158545055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67106.

The product of its (nonzero) digits is 200000, while the sum is 40.

The square root of 2158545055 is about 46460.1448017545. The cubic root of 2158545055 is about 1292.3705095703.

The spelling of 2158545055 in words is "two billion, one hundred fifty-eight million, five hundred forty-five thousand, fifty-five".