50915109 has 16 divisors (see below), whose sum is σ = 78745088. Its totient is φ = 28659312.

The previous prime is 50915107. The next prime is 50915129. The reversal of 50915109 is 90151905.

It is not a de Polignac number, because 50915109 - 2¹ = 50915107 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50915101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16687 + ... + 19500.

It is an arithmetic number, because the mean of its divisors is an integer number (4921568).

Almost surely, 2^50915109 is an apocalyptic number.

It is an amenable number.

50915109 is a deficient number, since it is larger than the sum of its proper divisors (27829979).

50915109 is a wasteful number, since it uses less digits than its factorization.

50915109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36264.

The product of its (nonzero) digits is 2025, while the sum is 30.

The square root of 50915109 is about 7135.4823943445. The cubic root of 50915109 is about 370.6371029758.

The spelling of 50915109 in words is "fifty million, nine hundred fifteen thousand, one hundred nine".