5051990806 has 8 divisors (see below), whose sum is σ = 7578354024. Its totient is φ = 2525872800.

The previous prime is 5051990777. The next prime is 5051990813. The reversal of 5051990806 is 6080991505.

It is a happy number.

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

It is a super-2 number, since 2×5051990806² = 51045222207817059272, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4206 + ... + 100606.

It is an arithmetic number, because the mean of its divisors is an integer number (947294253).

Almost surely, 2^5051990806 is an apocalyptic number.

5051990806 is a deficient number, since it is larger than the sum of its proper divisors (2526363218).

5051990806 is a wasteful number, since it uses less digits than its factorization.

5051990806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122606.

The product of its (nonzero) digits is 97200, while the sum is 43.

The square root of 5051990806 is about 71077.3578996856. The cubic root of 5051990806 is about 1715.8823902004.

The spelling of 5051990806 in words is "five billion, fifty-one million, nine hundred ninety thousand, eight hundred six".