2856055 has 4 divisors (see below), whose sum is σ = 3427272. Its totient is φ = 2284840.

The previous prime is 2856037. The next prime is 2856059. The reversal of 2856055 is 5506582.

2856055 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5506582 = 2 ⋅2753291.

It is not a de Polignac number, because 2856055 - 2⁷ = 2855927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285601 + ... + 285610.

It is an arithmetic number, because the mean of its divisors is an integer number (856818).

2^2856055 is an apocalyptic number.

2856055 is a deficient number, since it is larger than the sum of its proper divisors (571217).

2856055 is an equidigital number, since it uses as much as digits as its factorization.

2856055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571216.

The product of its (nonzero) digits is 12000, while the sum is 31.

The square root of 2856055 is about 1689.9866863381. The cubic root of 2856055 is about 141.8803296464.

It can be divided in two parts, 285605 and 5, that multiplied together give a square (1428025 = 1195²).

The spelling of 2856055 in words is "two million, eight hundred fifty-six thousand, fifty-five".