2055557815 has 8 divisors (see below), whose sum is σ = 2477442240. Its totient is φ = 1637264352.

The previous prime is 2055557773. The next prime is 2055557821. The reversal of 2055557815 is 5187555502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2055557815 - 2¹⁷ = 2055426743 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 896479 + ... + 898768.

It is an arithmetic number, because the mean of its divisors is an integer number (309680280).

Almost surely, 2^2055557815 is an apocalyptic number.

2055557815 is a deficient number, since it is larger than the sum of its proper divisors (421884425).

2055557815 is a wasteful number, since it uses less digits than its factorization.

2055557815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1795481.

The product of its (nonzero) digits is 350000, while the sum is 43.

The square root of 2055557815 is about 45338.2599467602. The cubic root of 2055557815 is about 1271.4810701746.

The spelling of 2055557815 in words is "two billion, fifty-five million, five hundred fifty-seven thousand, eight hundred fifteen".