2056751 has 2 divisors, whose sum is σ = 2056752. Its totient is φ = 2056750.

The previous prime is 2056741. The next prime is 2056753. The reversal of 2056751 is 1576502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2056751 - 2⁶ = 2056687 is a prime.

Together with 2056753, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2056751.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2056753) 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, 1028375 + 1028376.

It is an arithmetic number, because the mean of its divisors is an integer number (1028376).

2^2056751 is an apocalyptic number.

2056751 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056751 is an equidigital number, since it uses as much as digits as its factorization.

2056751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 2056751 is about 1434.1377200255. The cubic root of 2056751 is about 127.1727040503.

Subtracting from 2056751 its reverse (1576502), we obtain a square (480249 = 693²).

The spelling of 2056751 in words is "two million, fifty-six thousand, seven hundred fifty-one".