53075779563 has 4 divisors (see below), whose sum is σ = 70767706088. Its totient is φ = 35383853040.

The previous prime is 53075779553. The next prime is 53075779637. The reversal of 53075779563 is 36597757035.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 53075779563 - 2⁹ = 53075779051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53075779553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8845963258 + ... + 8845963263.

It is an arithmetic number, because the mean of its divisors is an integer number (17691926522).

Almost surely, 2^53075779563 is an apocalyptic number.

53075779563 is a deficient number, since it is larger than the sum of its proper divisors (17691926525).

53075779563 is a wasteful number, since it uses less digits than its factorization.

53075779563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17691926524.

The product of its (nonzero) digits is 20837250, while the sum is 57.

The spelling of 53075779563 in words is "fifty-three billion, seventy-five million, seven hundred seventy-nine thousand, five hundred sixty-three".