50439539 has 2 divisors, whose sum is σ = 50439540. Its totient is φ = 50439538.

The previous prime is 50439523. The next prime is 50439541. The reversal of 50439539 is 93593405.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 50439539 - 2⁴ = 50439523 is a prime.

Together with 50439541, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (50439239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25219769 + 25219770.

It is an arithmetic number, because the mean of its divisors is an integer number (25219770).

Almost surely, 2^50439539 is an apocalyptic number.

50439539 is a deficient number, since it is larger than the sum of its proper divisors (1).

50439539 is an equidigital number, since it uses as much as digits as its factorization.

50439539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 50439539 is about 7102.0799066189. The cubic root of 50439539 is about 369.4795189711.

The spelling of 50439539 in words is "fifty million, four hundred thirty-nine thousand, five hundred thirty-nine".