5552545581 has 96 divisors (see below), whose sum is σ = 9496206720. Its totient is φ = 3093350400.

The previous prime is 5552545567. The next prime is 5552545601. The reversal of 5552545581 is 1855452555.

5552545581 is a `hidden beast` number, since 5 + 5 + 5 + 25 + 45 + 581 = 666.

It is not a de Polignac number, because 5552545581 - 2¹⁵ = 5552512813 is a prime.

It is a super-2 number, since 2×5552545581² = 61661524858165255122, which contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5552545511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 5061025 + ... + 5062121.

It is an arithmetic number, because the mean of its divisors is an integer number (98918820).

Almost surely, 2^5552545581 is an apocalyptic number.

It is an amenable number.

5552545581 is a deficient number, since it is larger than the sum of its proper divisors (3943661139).

5552545581 is a wasteful number, since it uses less digits than its factorization.

5552545581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227 (or 1224 counting only the distinct ones).

The product of its digits is 1000000, while the sum is 45.

The square root of 5552545581 is about 74515.4049911829. The cubic root of 5552545581 is about 1770.7776999957. Note that the first 3 decimals are identical.

The spelling of 5552545581 in words is "five billion, five hundred fifty-two million, five hundred forty-five thousand, five hundred eighty-one".