2257811 has 4 divisors (see below), whose sum is σ = 2269824. Its totient is φ = 2245800.

The previous prime is 2257799. The next prime is 2257813. The reversal of 2257811 is 1187522.

2257811 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2257811 - 2¹⁴ = 2241427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2257813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5720 + ... + 6101.

It is an arithmetic number, because the mean of its divisors is an integer number (567456).

2^2257811 is an apocalyptic number.

2257811 is a deficient number, since it is larger than the sum of its proper divisors (12013).

2257811 is a wasteful number, since it uses less digits than its factorization.

2257811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12012.

The product of its digits is 1120, while the sum is 26.

The square root of 2257811 is about 1502.6014108871. The cubic root of 2257811 is about 131.1885287351.

The spelling of 2257811 in words is "two million, two hundred fifty-seven thousand, eight hundred eleven".