2056566757 has 16 divisors (see below), whose sum is σ = 2369912832. Its totient is φ = 1748159280.

The previous prime is 2056566751. The next prime is 2056566761. The reversal of 2056566757 is 7576656502.

It is not a de Polignac number, because 2056566757 - 2¹¹ = 2056564709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2056566757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2056566751) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 572188 + ... + 575770.

It is an arithmetic number, because the mean of its divisors is an integer number (148119552).

Almost surely, 2^2056566757 is an apocalyptic number.

It is an amenable number.

2056566757 is a deficient number, since it is larger than the sum of its proper divisors (313346075).

2056566757 is a wasteful number, since it uses less digits than its factorization.

2056566757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4248.

The product of its (nonzero) digits is 2646000, while the sum is 49.

The square root of 2056566757 is about 45349.3854092864. The cubic root of 2056566757 is about 1271.6890657548.

The spelling of 2056566757 in words is "two billion, fifty-six million, five hundred sixty-six thousand, seven hundred fifty-seven".