50389893 has 18 divisors (see below), whose sum is σ = 74945234. Its totient is φ = 32601312.

The previous prime is 50389891. The next prime is 50389897. The reversal of 50389893 is 39898305.

It can be written as a sum of positive squares in 3 ways, for example, as 5673924 + 44715969 = 2382^2 + 6687^2 .

It is not a de Polignac number, because 50389893 - 2¹ = 50389891 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 (50389891) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 129343 + ... + 129731.

Almost surely, 2^50389893 is an apocalyptic number.

It is an amenable number.

50389893 is a deficient number, since it is larger than the sum of its proper divisors (24555341).

50389893 is an equidigital number, since it uses as much as digits as its factorization.

50389893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 821 (or 429 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 50389893 is about 7098.5838728580. The cubic root of 50389893 is about 369.3582569476.

The spelling of 50389893 in words is "fifty million, three hundred eighty-nine thousand, eight hundred ninety-three".