50911939 has 4 divisors (see below), whose sum is σ = 54828256. Its totient is φ = 46995624.

The previous prime is 50911933. The next prime is 50911969. The reversal of 50911939 is 93911905.

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

It is not a de Polignac number, because 50911939 - 2¹⁹ = 50387651 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50911898 and 50911907.

It is not an unprimeable number, because it can be changed into a prime (50911933) 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, 1958139 + ... + 1958164.

It is an arithmetic number, because the mean of its divisors is an integer number (13707064).

Almost surely, 2^50911939 is an apocalyptic number.

50911939 is a deficient number, since it is larger than the sum of its proper divisors (3916317).

50911939 is a wasteful number, since it uses less digits than its factorization.

50911939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3916316.

The product of its (nonzero) digits is 10935, while the sum is 37.

The square root of 50911939 is about 7135.2602615462. The cubic root of 50911939 is about 370.6294107994.

The spelling of 50911939 in words is "fifty million, nine hundred eleven thousand, nine hundred thirty-nine".