2851255 has 16 divisors (see below), whose sum is σ = 3815424. Its totient is φ = 2027680.

The previous prime is 2851253. The next prime is 2851267. The reversal of 2851255 is 5521582.

It is not a de Polignac number, because 2851255 - 2¹ = 2851253 is a prime.

It is a Duffinian number.

2851255 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2851253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2034 + ... + 3136.

It is an arithmetic number, because the mean of its divisors is an integer number (238464).

2^2851255 is an apocalyptic number.

2851255 is a deficient number, since it is larger than the sum of its proper divisors (964169).

2851255 is a wasteful number, since it uses less digits than its factorization.

2851255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166.

The product of its digits is 4000, while the sum is 28.

The square root of 2851255 is about 1688.5659596237. The cubic root of 2851255 is about 141.8008018294.

It can be divided in two parts, 285 and 1255, that added together give a triangular number (1540 = T₅₅).

The spelling of 2851255 in words is "two million, eight hundred fifty-one thousand, two hundred fifty-five".