2054505771 has 48 divisors (see below), whose sum is σ = 3122159040. Its totient is φ = 1300561920.

The previous prime is 2054505769. The next prime is 2054505779. The reversal of 2054505771 is 1775054502.

It is not a de Polignac number, because 2054505771 - 2¹ = 2054505769 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2054505779) 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 47 ways as a sum of consecutive naturals, for example, 2671275 + ... + 2672043.

It is an arithmetic number, because the mean of its divisors is an integer number (65044980).

Almost surely, 2^2054505771 is an apocalyptic number.

2054505771 is a deficient number, since it is larger than the sum of its proper divisors (1067653269).

2054505771 is a wasteful number, since it uses less digits than its factorization.

2054505771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 996 (or 993 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 36.

The square root of 2054505771 is about 45326.6562962679. The cubic root of 2054505771 is about 1271.2641165263.

The spelling of 2054505771 in words is "two billion, fifty-four million, five hundred five thousand, seven hundred seventy-one".