2159755563 has 16 divisors (see below), whose sum is σ = 3305434880. Its totient is φ = 1228754016.

The previous prime is 2159755561. The next prime is 2159755573. The reversal of 2159755563 is 3655579512.

It is a happy number.

It is not a de Polignac number, because 2159755563 - 2¹ = 2159755561 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2159755561) 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 in 15 ways as a sum of consecutive naturals, for example, 219745 + ... + 229362.

It is an arithmetic number, because the mean of its divisors is an integer number (206589680).

Almost surely, 2^2159755563 is an apocalyptic number.

2159755563 is a deficient number, since it is larger than the sum of its proper divisors (1145679317).

2159755563 is a wasteful number, since it uses less digits than its factorization.

2159755563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449346.

The product of its digits is 1417500, while the sum is 48.

The square root of 2159755563 is about 46473.1703566692. The cubic root of 2159755563 is about 1292.6120507396.

The spelling of 2159755563 in words is "two billion, one hundred fifty-nine million, seven hundred fifty-five thousand, five hundred sixty-three".