50438591 has 6 divisors (see below), whose sum is σ = 58673520. Its totient is φ = 43233036.

The previous prime is 50438587. The next prime is 50438593. The reversal of 50438591 is 19583405.

50438591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 50438591 - 2² = 50438587 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 (50438593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 514631 + ... + 514728.

It is an arithmetic number, because the mean of its divisors is an integer number (9778920).

Almost surely, 2^50438591 is an apocalyptic number.

50438591 is a deficient number, since it is larger than the sum of its proper divisors (8234929).

50438591 is a wasteful number, since it uses less digits than its factorization.

50438591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029373 (or 1029366 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 50438591 is about 7102.0131652933. The cubic root of 50438591 is about 369.4772041946.

The spelling of 50438591 in words is "fifty million, four hundred thirty-eight thousand, five hundred ninety-one".