50999999999 has 8 divisors (see below), whose sum is σ = 56262664752. Its totient is φ = 45928704960.

The previous prime is 50999999957. The next prime is 51000000041. The reversal of 50999999999 is 99999999905.

It is an interprime number because it is at equal distance from previous prime (50999999957) and next prime (51000000041).

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 50999999999 - 2²⁴ = 50983222783 is a prime.

It is a Duffinian number.

50999999999 is a modest number, since divided by 999999 gives 50999 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 50999999999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50999999909) 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, 47841869 + ... + 47842934.

It is an arithmetic number, because the mean of its divisors is an integer number (7032833094).

Almost surely, 2^50999999999 is an apocalyptic number.

50999999999 is a deficient number, since it is larger than the sum of its proper divisors (5262664753).

50999999999 is a wasteful number, since it uses less digits than its factorization.

50999999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95684857.

The product of its (nonzero) digits is 1937102445, while the sum is 86.

The spelling of 50999999999 in words is "fifty billion, nine hundred ninety-nine million, nine hundred ninety-nine thousand, nine hundred ninety-nine".