50387421 has 12 divisors (see below), whose sum is σ = 76830432. Its totient is φ = 28774224.

The previous prime is 50387419. The next prime is 50387429. The reversal of 50387421 is 12478305.

50387421 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 50387421 - 2¹ = 50387419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50387429) 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 11 ways as a sum of consecutive naturals, for example, 31755 + ... + 33303.

It is an arithmetic number, because the mean of its divisors is an integer number (6402536).

Almost surely, 2^50387421 is an apocalyptic number.

It is an amenable number.

50387421 is a deficient number, since it is larger than the sum of its proper divisors (26443011).

50387421 is an frugal number, since it uses more digits than its factorization.

50387421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3108 (or 1559 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 50387421 is about 7098.4097514866. The cubic root of 50387421 is about 369.3522169233.

The spelling of 50387421 in words is "fifty million, three hundred eighty-seven thousand, four hundred twenty-one".