50321513 has 16 divisors (see below), whose sum is σ = 59123520. Its totient is φ = 42316800.

The previous prime is 50321507. The next prime is 50321521. The reversal of 50321513 is 31512305.

It is a cyclic number.

It is not a de Polignac number, because 50321513 - 2⁴ = 50321497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50321543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8753 + ... + 13313.

It is an arithmetic number, because the mean of its divisors is an integer number (3695220).

Almost surely, 2^50321513 is an apocalyptic number.

It is an amenable number.

50321513 is a deficient number, since it is larger than the sum of its proper divisors (8802007).

50321513 is a wasteful number, since it uses less digits than its factorization.

50321513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4648.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 50321513 is about 7093.7657841234. The cubic root of 50321513 is about 369.1911060282.

Adding to 50321513 its reverse (31512305), we get a palindrome (81833818).

The spelling of 50321513 in words is "fifty million, three hundred twenty-one thousand, five hundred thirteen".