2788055 has 4 divisors (see below), whose sum is σ = 3345672. Its totient is φ = 2230440.

The previous prime is 2788033. The next prime is 2788057. The reversal of 2788055 is 5508872.

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

It is not a de Polignac number, because 2788055 - 2¹² = 2783959 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788057) 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, 278801 + ... + 278810.

It is an arithmetic number, because the mean of its divisors is an integer number (836418).

2^2788055 is an apocalyptic number.

2788055 is a deficient number, since it is larger than the sum of its proper divisors (557617).

2788055 is an equidigital number, since it uses as much as digits as its factorization.

2788055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557616.

The product of its (nonzero) digits is 22400, while the sum is 35.

The square root of 2788055 is about 1669.7469868217. The cubic root of 2788055 is about 140.7452604179.

The spelling of 2788055 in words is "two million, seven hundred eighty-eight thousand, fifty-five".