50428387 has 4 divisors (see below), whose sum is σ = 51379920. Its totient is φ = 49476856.

The previous prime is 50428349. The next prime is 50428429. The reversal of 50428387 is 78382405.

50428387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78382405 = 5 ⋅15676481.

It is a cyclic number.

It is not a de Polignac number, because 50428387 - 2¹¹ = 50426339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50428487) 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 3 ways as a sum of consecutive naturals, for example, 475687 + ... + 475792.

It is an arithmetic number, because the mean of its divisors is an integer number (12844980).

Almost surely, 2^50428387 is an apocalyptic number.

50428387 is a deficient number, since it is larger than the sum of its proper divisors (951533).

50428387 is an equidigital number, since it uses as much as digits as its factorization.

50428387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951532.

The product of its (nonzero) digits is 53760, while the sum is 37.

The square root of 50428387 is about 7101.2947411018. The cubic root of 50428387 is about 369.4522867681.

The spelling of 50428387 in words is "fifty million, four hundred twenty-eight thousand, three hundred eighty-seven".