2057611 has 2 divisors, whose sum is σ = 2057612. Its totient is φ = 2057610.

The previous prime is 2057609. The next prime is 2057633. The reversal of 2057611 is 1167502.

It is an a-pointer prime, because the next prime (2057633) can be obtained adding 2057611 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2057611 - 2¹ = 2057609 is a prime.

Together with 2057609, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2057411) 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, 1028805 + 1028806.

It is an arithmetic number, because the mean of its divisors is an integer number (1028806).

2^2057611 is an apocalyptic number.

2057611 is the 642-nd centered decagonal number.

2057611 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057611 is an equidigital number, since it uses as much as digits as its factorization.

2057611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 2057611 is about 1434.4375204239. The cubic root of 2057611 is about 127.1904267085.

The spelling of 2057611 in words is "two million, fifty-seven thousand, six hundred eleven".