2040055 has 4 divisors (see below), whose sum is σ = 2448072. Its totient is φ = 1632040.

The previous prime is 2040053. The next prime is 2040089. The reversal of 2040055 is 5500402.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5500402 = 2 ⋅2750201.

It is not a de Polignac number, because 2040055 - 2¹ = 2040053 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 (2040053) 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, 204001 + ... + 204010.

It is an arithmetic number, because the mean of its divisors is an integer number (612018).

2^2040055 is an apocalyptic number.

2040055 is a deficient number, since it is larger than the sum of its proper divisors (408017).

2040055 is an equidigital number, since it uses as much as digits as its factorization.

2040055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408016.

The product of its (nonzero) digits is 200, while the sum is 16.

The square root of 2040055 is about 1428.3049394300. The cubic root of 2040055 is about 126.8276538782.

Adding to 2040055 its reverse (5500402), we get a palindrome (7540457).

The spelling of 2040055 in words is "two million, forty thousand, fifty-five".