2555111 has 8 divisors (see below), whose sum is σ = 2770320. Its totient is φ = 2356536.

The previous prime is 2555099. The next prime is 2555123. The reversal of 2555111 is 1115552.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2555099) and next prime (2555123).

It is not a de Polignac number, because 2555111 - 2¹⁰ = 2554087 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 (2555131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1616 + ... + 2778.

It is an arithmetic number, because the mean of its divisors is an integer number (346290).

2^2555111 is an apocalyptic number.

2555111 is a deficient number, since it is larger than the sum of its proper divisors (215209).

2555111 is an equidigital number, since it uses as much as digits as its factorization.

2555111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202 (or 1176 counting only the distinct ones).

The product of its digits is 250, while the sum is 20.

The square root of 2555111 is about 1598.4714573617. The cubic root of 2555111 is about 136.7109361510.

It can be divided in two parts, 255 and 5111, that multiplied together give a triangular number (1303305 = T₁₆₁₄).

The spelling of 2555111 in words is "two million, five hundred fifty-five thousand, one hundred eleven".