2091055 has 16 divisors (see below), whose sum is σ = 2626560. Its totient is φ = 1596672.

The previous prime is 2091053. The next prime is 2091097. The reversal of 2091055 is 5501902.

It is a cyclic number.

It is not a de Polignac number, because 2091055 - 2¹ = 2091053 is a prime.

It is a super-2 number, since 2×2091055² = 8745022026050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091053) 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, 16402 + ... + 16528.

It is an arithmetic number, because the mean of its divisors is an integer number (164160).

2^2091055 is an apocalyptic number.

2091055 is a deficient number, since it is larger than the sum of its proper divisors (535505).

2091055 is a wasteful number, since it uses less digits than its factorization.

2091055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 2091055 is about 1446.0480628250. The cubic root of 2091055 is about 127.8758358131.

Adding to 2091055 its reverse (5501902), we get a palindrome (7592957).

The spelling of 2091055 in words is "two million, ninety-one thousand, fifty-five".