50306513 has 2 divisors, whose sum is σ = 50306514. Its totient is φ = 50306512.

The previous prime is 50306507. The next prime is 50306567. The reversal of 50306513 is 31560305.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46895104 + 3411409 = 6848^2 + 1847^2 .

It is a cyclic number.

It is not a de Polignac number, because 50306513 - 2⁸ = 50306257 is a prime.

It is not a weakly prime, because it can be changed into another prime (50306413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25153256 + 25153257.

It is an arithmetic number, because the mean of its divisors is an integer number (25153257).

Almost surely, 2^50306513 is an apocalyptic number.

It is an amenable number.

50306513 is a deficient number, since it is larger than the sum of its proper divisors (1).

50306513 is an equidigital number, since it uses as much as digits as its factorization.

50306513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 50306513 is about 7092.7084389533. The cubic root of 50306513 is about 369.1544191548.

Adding to 50306513 its reverse (31560305), we get a palindrome (81866818).

The spelling of 50306513 in words is "fifty million, three hundred six thousand, five hundred thirteen".