2054855519 has 4 divisors (see below), whose sum is σ = 2056405344. Its totient is φ = 2053305696.

The previous prime is 2054855503. The next prime is 2054855531. The reversal of 2054855519 is 9155584502.

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

It is a cyclic number.

It is not a de Polignac number, because 2054855519 - 2⁴ = 2054855503 is a prime.

It is a super-2 number, since 2×2054855519² = 8444862407929518722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2054855519.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2054855549) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 772922 + ... + 775575.

It is an arithmetic number, because the mean of its divisors is an integer number (514101336).

Almost surely, 2^2054855519 is an apocalyptic number.

2054855519 is a deficient number, since it is larger than the sum of its proper divisors (1549825).

2054855519 is a wasteful number, since it uses less digits than its factorization.

2054855519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549824.

The product of its (nonzero) digits is 360000, while the sum is 44.

The square root of 2054855519 is about 45330.5142150406. The cubic root of 2054855519 is about 1271.3362501526.

It can be divided in two parts, 20548 and 55519, that added together give a palindrome (76067).

The spelling of 2054855519 in words is "two billion, fifty-four million, eight hundred fifty-five thousand, five hundred nineteen".