5545221563 has 24 divisors (see below), whose sum is σ = 6620367600. Its totient is φ = 4628594880.

The previous prime is 5545221559. The next prime is 5545221673. The reversal of 5545221563 is 3651225455.

It is not a de Polignac number, because 5545221563 - 2² = 5545221559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5545221553) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 731573 + ... + 739113.

It is an arithmetic number, because the mean of its divisors is an integer number (275848650).

Almost surely, 2^5545221563 is an apocalyptic number.

5545221563 is a deficient number, since it is larger than the sum of its proper divisors (1075146037).

5545221563 is a wasteful number, since it uses less digits than its factorization.

5545221563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7947 (or 7940 counting only the distinct ones).

The product of its digits is 180000, while the sum is 38.

The square root of 5545221563 is about 74466.2444534435. The cubic root of 5545221563 is about 1769.9987831287.

The spelling of 5545221563 in words is "five billion, five hundred forty-five million, two hundred twenty-one thousand, five hundred sixty-three".