50218791 has 16 divisors (see below), whose sum is σ = 78993408. Its totient is φ = 27770400.

The previous prime is 50218789. The next prime is 50218801. The reversal of 50218791 is 19781205.

It is not a de Polignac number, because 50218791 - 2¹ = 50218789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50218741) 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, 37920 + ... + 39221.

It is an arithmetic number, because the mean of its divisors is an integer number (4937088).

Almost surely, 2^50218791 is an apocalyptic number.

50218791 is a deficient number, since it is larger than the sum of its proper divisors (28774617).

50218791 is a wasteful number, since it uses less digits than its factorization.

50218791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77182.

The product of its (nonzero) digits is 5040, while the sum is 33.

The square root of 50218791 is about 7086.5217843453. The cubic root of 50218791 is about 368.9397232643.

Adding to 50218791 its reverse (19781205), we get a palindrome (69999996).

The spelling of 50218791 in words is "fifty million, two hundred eighteen thousand, seven hundred ninety-one".