5605857581 has 8 divisors (see below), whose sum is σ = 5628645984. Its totient is φ = 5583088080.

The previous prime is 5605857577. The next prime is 5605857589. The reversal of 5605857581 is 1857585065.

5605857581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5605857581 - 2² = 5605857577 is a prime.

It is a super-2 number, since 2×5605857581² = 62851278436910343122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605857589) 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, 1019666 + ... + 1025148.

It is an arithmetic number, because the mean of its divisors is an integer number (703580748).

Almost surely, 2^5605857581 is an apocalyptic number.

It is an amenable number.

5605857581 is a deficient number, since it is larger than the sum of its proper divisors (22788403).

5605857581 is a wasteful number, since it uses less digits than its factorization.

5605857581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9451.

The product of its (nonzero) digits is 1680000, while the sum is 50.

The square root of 5605857581 is about 74872.2751156929. The cubic root of 5605857581 is about 1776.4269507786.

The spelling of 5605857581 in words is "five billion, six hundred five million, eight hundred fifty-seven thousand, five hundred eighty-one".