50385891 has 8 divisors (see below), whose sum is σ = 70717120. Its totient is φ = 31822632.

The previous prime is 50385889. The next prime is 50385899. The reversal of 50385891 is 19858305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50385891 - 2¹ = 50385889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50385899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 441925 + ... + 442038.

It is an arithmetic number, because the mean of its divisors is an integer number (8839640).

Almost surely, 2^50385891 is an apocalyptic number.

50385891 is a deficient number, since it is larger than the sum of its proper divisors (20331229).

50385891 is a wasteful number, since it uses less digits than its factorization.

50385891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883985.

The product of its (nonzero) digits is 43200, while the sum is 39.

The square root of 50385891 is about 7098.3019800513. The cubic root of 50385891 is about 369.3484784597.

The spelling of 50385891 in words is "fifty million, three hundred eighty-five thousand, eight hundred ninety-one".