2557111 has 2 divisors, whose sum is σ = 2557112. Its totient is φ = 2557110.

The previous prime is 2557099. The next prime is 2557127. The reversal of 2557111 is 1117552.

2557111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2557111 - 2¹⁵ = 2524343 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2557171) 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 as a sum of consecutive naturals, namely, 1278555 + 1278556.

It is an arithmetic number, because the mean of its divisors is an integer number (1278556).

2^2557111 is an apocalyptic number.

2557111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2557111 is an equidigital number, since it uses as much as digits as its factorization.

2557111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 350, while the sum is 22.

The square root of 2557111 is about 1599.0969326467. The cubic root of 2557111 is about 136.7465967757.

The spelling of 2557111 in words is "two million, five hundred fifty-seven thousand, one hundred eleven".