5998557806 has 4 divisors (see below), whose sum is σ = 8997836712. Its totient is φ = 2999278902.

The previous prime is 5998557791. The next prime is 5998557827. The reversal of 5998557806 is 6087558995.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1499639450 + ... + 1499639453.

It is an arithmetic number, because the mean of its divisors is an integer number (2249459178).

Almost surely, 2^5998557806 is an apocalyptic number.

5998557806 is a deficient number, since it is larger than the sum of its proper divisors (2999278906).

5998557806 is a wasteful number, since it uses less digits than its factorization.

5998557806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2999278905.

The product of its (nonzero) digits is 27216000, while the sum is 62.

The square root of 5998557806 is about 77450.3570424307. The cubic root of 5998557806 is about 1816.9749900313.

The spelling of 5998557806 in words is "five billion, nine hundred ninety-eight million, five hundred fifty-seven thousand, eight hundred six".