50243639 has 2 divisors, whose sum is σ = 50243640. Its totient is φ = 50243638.

The previous prime is 50243623. The next prime is 50243663. The reversal of 50243639 is 93634205.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 50243639 - 2⁴ = 50243623 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50243939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25121819 + 25121820.

It is an arithmetic number, because the mean of its divisors is an integer number (25121820).

Almost surely, 2^50243639 is an apocalyptic number.

50243639 is a deficient number, since it is larger than the sum of its proper divisors (1).

50243639 is an equidigital number, since it uses as much as digits as its factorization.

50243639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 50243639 is about 7088.2747548328. The cubic root of 50243639 is about 369.0005630581. Note that the first 3 decimals are identical.

The spelling of 50243639 in words is "fifty million, two hundred forty-three thousand, six hundred thirty-nine".