5721555858 has 32 divisors (see below), whose sum is σ = 11926966272. Its totient is φ = 1827738000.

The previous prime is 5721555839. The next prime is 5721555859. The reversal of 5721555858 is 8585551275.

It is a self number, because there is not a number n which added to its sum of digits gives 5721555858.

It is not an unprimeable number, because it can be changed into a prime (5721555859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 130168 + ... + 168483.

It is an arithmetic number, because the mean of its divisors is an integer number (372717696).

Almost surely, 2^5721555858 is an apocalyptic number.

5721555858 is an abundant number, since it is smaller than the sum of its proper divisors (6205410414).

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

5721555858 is a wasteful number, since it uses less digits than its factorization.

5721555858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298790.

The product of its digits is 2800000, while the sum is 51.

The square root of 5721555858 is about 75640.9667971001. The cubic root of 5721555858 is about 1788.5649430458.

The spelling of 5721555858 in words is "five billion, seven hundred twenty-one million, five hundred fifty-five thousand, eight hundred fifty-eight".