50739421 has 4 divisors (see below), whose sum is σ = 51139072. Its totient is φ = 50339772.

The previous prime is 50739419. The next prime is 50739431. The reversal of 50739421 is 12493705.

50739421 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50739421 - 2¹ = 50739419 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 (50739401) 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, 199635 + ... + 199888.

It is an arithmetic number, because the mean of its divisors is an integer number (12784768).

Almost surely, 2^50739421 is an apocalyptic number.

It is an amenable number.

50739421 is a deficient number, since it is larger than the sum of its proper divisors (399651).

50739421 is a wasteful number, since it uses less digits than its factorization.

50739421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399650.

The product of its (nonzero) digits is 7560, while the sum is 31.

The square root of 50739421 is about 7123.1608854497. The cubic root of 50739421 is about 370.2103041096.

The spelling of 50739421 in words is "fifty million, seven hundred thirty-nine thousand, four hundred twenty-one".