50420039 has 4 divisors (see below), whose sum is σ = 50472624. Its totient is φ = 50367456.

The previous prime is 50420023. The next prime is 50420057. The reversal of 50420039 is 93002405.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93002405 = 5 ⋅18600481.

It is a cyclic number.

It is not a de Polignac number, because 50420039 - 2⁴ = 50420023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50419996 and 50420023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50426039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24827 + ... + 26780.

It is an arithmetic number, because the mean of its divisors is an integer number (12618156).

Almost surely, 2^50420039 is an apocalyptic number.

50420039 is a deficient number, since it is larger than the sum of its proper divisors (52585).

50420039 is an equidigital number, since it uses as much as digits as its factorization.

50420039 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52584.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 50420039 is about 7100.7069366367. The cubic root of 50420039 is about 369.4318990587.

The spelling of 50420039 in words is "fifty million, four hundred twenty thousand, thirty-nine".