50999005 has 4 divisors (see below), whose sum is σ = 61198812. Its totient is φ = 40799200.

The previous prime is 50998991. The next prime is 50999033. The reversal of 50999005 is 50099905.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19873764 + 31125241 = 4458^2 + 5579^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50999005 is a prime.

It is a Duffinian number.

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, 5099896 + ... + 5099905.

It is an arithmetic number, because the mean of its divisors is an integer number (15299703).

Almost surely, 2^50999005 is an apocalyptic number.

It is an amenable number.

50999005 is a deficient number, since it is larger than the sum of its proper divisors (10199807).

50999005 is a wasteful number, since it uses less digits than its factorization.

50999005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10199806.

The product of its (nonzero) digits is 18225, while the sum is 37.

The square root of 50999005 is about 7141.3587642689. The cubic root of 50999005 is about 370.8405652197.

It can be divided in two parts, 5099900 and 5, that added together give a palindrome (5099905).

The spelling of 50999005 in words is "fifty million, nine hundred ninety-nine thousand, five".