50115999 has 4 divisors (see below), whose sum is σ = 66821336. Its totient is φ = 33410664.

The previous prime is 50115979. The next prime is 50116007. The reversal of 50115999 is 99951105.

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

It is not a de Polignac number, because 50115999 - 2⁸ = 50115743 is a prime.

It is a super-2 number, since 2×50115999² = 5023226711536002, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50115929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8352664 + ... + 8352669.

It is an arithmetic number, because the mean of its divisors is an integer number (16705334).

Almost surely, 2^50115999 is an apocalyptic number.

50115999 is a deficient number, since it is larger than the sum of its proper divisors (16705337).

50115999 is a wasteful number, since it uses less digits than its factorization.

50115999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16705336.

The product of its (nonzero) digits is 18225, while the sum is 39.

The square root of 50115999 is about 7079.2654279946. The cubic root of 50115999 is about 368.6878258098.

The spelling of 50115999 in words is "fifty million, one hundred fifteen thousand, nine hundred ninety-nine".