50891823 has 12 divisors (see below), whose sum is σ = 77379640. Its totient is φ = 32142096.

The previous prime is 50891809. The next prime is 50891831. The reversal of 50891823 is 32819805.

It is not a de Polignac number, because 50891823 - 2⁵ = 50891791 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 (50891803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148636 + ... + 148977.

Almost surely, 2^50891823 is an apocalyptic number.

50891823 is a deficient number, since it is larger than the sum of its proper divisors (26487817).

50891823 is a wasteful number, since it uses less digits than its factorization.

50891823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297638 (or 297635 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 50891823 is about 7133.8505030593. The cubic root of 50891823 is about 370.5805907942.

The spelling of 50891823 in words is "fifty million, eight hundred ninety-one thousand, eight hundred twenty-three".