5581424020 has 24 divisors (see below), whose sum is σ = 12410461224. Its totient is φ = 2101241856.

The previous prime is 5581423979. The next prime is 5581424027. The reversal of 5581424020 is 204241855.

It can be written as a sum of positive squares in 4 ways, for example, as 1044323856 + 4537100164 = 32316^2 + 67358^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581424027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8207637 + ... + 8208316.

It is an arithmetic number, because the mean of its divisors is an integer number (517102551).

Almost surely, 2^5581424020 is an apocalyptic number.

It is an amenable number.

5581424020 is an abundant number, since it is smaller than the sum of its proper divisors (6829037204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5581424020 is a wasteful number, since it uses less digits than its factorization.

5581424020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16415979 (or 16415977 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The square root of 5581424020 is about 74708.9286497939. The cubic root of 5581424020 is about 1773.8422942058.

Adding to 5581424020 its reverse (204241855), we get a palindrome (5785665875).

The spelling of 5581424020 in words is "five billion, five hundred eighty-one million, four hundred twenty-four thousand, twenty".