2055511 has 2 divisors, whose sum is σ = 2055512. Its totient is φ = 2055510.

The previous prime is 2055509. The next prime is 2055541. The reversal of 2055511 is 1155502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2055511 - 2¹ = 2055509 is a prime.

It is a super-2 number, since 2×2055511² = 8450250942242, which contains 22 as substring.

Together with 2055509, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2055541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1027755 + 1027756.

It is an arithmetic number, because the mean of its divisors is an integer number (1027756).

2^2055511 is an apocalyptic number.

2055511 is a deficient number, since it is larger than the sum of its proper divisors (1).

2055511 is an equidigital number, since it uses as much as digits as its factorization.

2055511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 250, while the sum is 19.

The square root of 2055511 is about 1433.7053393219. The cubic root of 2055511 is about 127.1471417509.

Subtracting from 2055511 its reverse (1155502), we obtain a palindrome (900009).

The spelling of 2055511 in words is "two million, fifty-five thousand, five hundred eleven".