50531539 has 2 divisors, whose sum is σ = 50531540. Its totient is φ = 50531538.

The previous prime is 50531527. The next prime is 50531563. The reversal of 50531539 is 93513505.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-50531539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 50531539.

It is not a weakly prime, because it can be changed into another prime (50535539) 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 as a sum of consecutive naturals, namely, 25265769 + 25265770.

It is an arithmetic number, because the mean of its divisors is an integer number (25265770).

Almost surely, 2^50531539 is an apocalyptic number.

50531539 is a deficient number, since it is larger than the sum of its proper divisors (1).

50531539 is an equidigital number, since it uses as much as digits as its factorization.

50531539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10125, while the sum is 31.

The square root of 50531539 is about 7108.5539317079. The cubic root of 50531539 is about 369.7040218810.

The spelling of 50531539 in words is "fifty million, five hundred thirty-one thousand, five hundred thirty-nine".