2053556779 has 2 divisors, whose sum is σ = 2053556780. Its totient is φ = 2053556778.

The previous prime is 2053556741. The next prime is 2053556789. The reversal of 2053556779 is 9776553502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2053556779 - 2¹³ = 2053548587 is a prime.

It is not a weakly prime, because it can be changed into another prime (2053556789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1026778389 + 1026778390.

It is an arithmetic number, because the mean of its divisors is an integer number (1026778390).

Almost surely, 2^2053556779 is an apocalyptic number.

2053556779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2053556779 is an equidigital number, since it uses as much as digits as its factorization.

2053556779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1984500, while the sum is 49.

The square root of 2053556779 is about 45316.1867217444. The cubic root of 2053556779 is about 1271.0683508272.

The spelling of 2053556779 in words is "two billion, fifty-three million, five hundred fifty-six thousand, seven hundred seventy-nine".