5581388901 has 24 divisors (see below), whose sum is σ = 8210215552. Its totient is φ = 3370118400.

The previous prime is 5581388899. The next prime is 5581388941. The reversal of 5581388901 is 1098831855.

It is not a de Polignac number, because 5581388901 - 2¹ = 5581388899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5581388941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 70005 + ... + 126741.

Almost surely, 2^5581388901 is an apocalyptic number.

It is an amenable number.

5581388901 is a deficient number, since it is larger than the sum of its proper divisors (2628826651).

5581388901 is a wasteful number, since it uses less digits than its factorization.

5581388901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57033 (or 57022 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 48.

The square root of 5581388901 is about 74708.6936105832. The cubic root of 5581388901 is about 1773.8385737874.

The spelling of 5581388901 in words is "five billion, five hundred eighty-one million, three hundred eighty-eight thousand, nine hundred one".