2056274557 has 2 divisors, whose sum is σ = 2056274558. Its totient is φ = 2056274556.

The previous prime is 2056274537. The next prime is 2056274569. The reversal of 2056274557 is 7554726502.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2055624921 + 649636 = 45339^2 + 806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2056274557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2056274537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028137278 + 1028137279.

It is an arithmetic number, because the mean of its divisors is an integer number (1028137279).

Almost surely, 2^2056274557 is an apocalyptic number.

It is an amenable number.

2056274557 is a deficient number, since it is larger than the sum of its proper divisors (1).

2056274557 is an equidigital number, since it uses as much as digits as its factorization.

2056274557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 588000, while the sum is 43.

The square root of 2056274557 is about 45346.1636414813. The cubic root of 2056274557 is about 1271.6288350907.

The spelling of 2056274557 in words is "two billion, fifty-six million, two hundred seventy-four thousand, five hundred fifty-seven".