50213239 has 4 divisors (see below), whose sum is σ = 51944760. Its totient is φ = 48481720.

The previous prime is 50213237. The next prime is 50213243. The reversal of 50213239 is 93231205.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93231205 = 5 ⋅18646241.

It is a cyclic number.

It is not a de Polignac number, because 50213239 - 2¹ = 50213237 is a prime.

It is a super-2 number, since 2×50213239² = 5042738741742242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50213231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865717 + ... + 865774.

It is an arithmetic number, because the mean of its divisors is an integer number (12986190).

Almost surely, 2^50213239 is an apocalyptic number.

50213239 is a deficient number, since it is larger than the sum of its proper divisors (1731521).

50213239 is a wasteful number, since it uses less digits than its factorization.

50213239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731520.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 50213239 is about 7086.1300439662. The cubic root of 50213239 is about 368.9261265688.

The spelling of 50213239 in words is "fifty million, two hundred thirteen thousand, two hundred thirty-nine".