2055178385 has 12 divisors (see below), whose sum is σ = 2656395252. Its totient is φ = 1517400288.

The previous prime is 2055178373. The next prime is 2055178393. The reversal of 2055178385 is 5838715502.

It can be written as a sum of positive squares in 2 ways, for example, as 505890064 + 1549288321 = 22492^2 + 39361^2 .

It is not a de Polignac number, because 2055178385 - 2⁸ = 2055178129 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 362684 + ... + 368306.

It is an arithmetic number, because the mean of its divisors is an integer number (221366271).

Almost surely, 2^2055178385 is an apocalyptic number.

It is an amenable number.

2055178385 is a deficient number, since it is larger than the sum of its proper divisors (601216867).

2055178385 is an frugal number, since it uses more digits than its factorization.

2055178385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11264 (or 5641 counting only the distinct ones).

The product of its (nonzero) digits is 336000, while the sum is 44.

The square root of 2055178385 is about 45334.0753186827. The cubic root of 2055178385 is about 1271.4028322472.

The spelling of 2055178385 in words is "two billion, fifty-five million, one hundred seventy-eight thousand, three hundred eighty-five".