2102555 has 16 divisors (see below), whose sum is σ = 3105984. Its totient is φ = 1330560.

The previous prime is 2102549. The next prime is 2102557. The reversal of 2102555 is 5552012.

It is not a de Polignac number, because 2102555 - 2¹⁰ = 2101531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2102557) 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, 1856 + ... + 2765.

It is an arithmetic number, because the mean of its divisors is an integer number (194124).

2^2102555 is an apocalyptic number.

2102555 is a deficient number, since it is larger than the sum of its proper divisors (1003429).

2102555 is a wasteful number, since it uses less digits than its factorization.

2102555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4646.

The product of its (nonzero) digits is 500, while the sum is 20.

The square root of 2102555 is about 1450.0189653932. The cubic root of 2102555 is about 128.1098300501.

Adding to 2102555 its reverse (5552012), we get a palindrome (7654567).

The spelling of 2102555 in words is "two million, one hundred two thousand, five hundred fifty-five".