2040551 has 2 divisors, whose sum is σ = 2040552. Its totient is φ = 2040550.

The previous prime is 2040541. The next prime is 2040557. The reversal of 2040551 is 1550402.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2040551 - 2¹⁴ = 2024167 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2040557) 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 as a sum of consecutive naturals, namely, 1020275 + 1020276.

It is an arithmetic number, because the mean of its divisors is an integer number (1020276).

2^2040551 is an apocalyptic number.

2040551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2040551 is an equidigital number, since it uses as much as digits as its factorization.

2040551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 2040551 is about 1428.4785612672. The cubic root of 2040551 is about 126.8379316107.

Adding to 2040551 its reverse (1550402), we get a palindrome (3590953).

The spelling of 2040551 in words is "two million, forty thousand, five hundred fifty-one".