50001533 has 2 divisors, whose sum is σ = 50001534. Its totient is φ = 50001532.

The previous prime is 50001529. The next prime is 50001557. The reversal of 50001533 is 33510005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26604964 + 23396569 = 5158^2 + 4837^2 .

It is a cyclic number.

It is not a de Polignac number, because 50001533 - 2² = 50001529 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50001583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000766 + 25000767.

It is an arithmetic number, because the mean of its divisors is an integer number (25000767).

Almost surely, 2^50001533 is an apocalyptic number.

It is an amenable number.

50001533 is a deficient number, since it is larger than the sum of its proper divisors (1).

50001533 is an equidigital number, since it uses as much as digits as its factorization.

50001533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225, while the sum is 17.

The square root of 50001533 is about 7071.1762105042. The cubic root of 50001533 is about 368.4069149058.

Adding to 50001533 its reverse (33510005), we get a palindrome (83511538).

The spelling of 50001533 in words is "fifty million, one thousand, five hundred thirty-three".