50016134521 has 2 divisors, whose sum is σ = 50016134522. Its totient is φ = 50016134520.

The previous prime is 50016134507. The next prime is 50016134543. The reversal of 50016134521 is 12543161005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 34749060921 + 15267073600 = 186411^2 + 123560^2 .

It is a cyclic number.

It is not a de Polignac number, because 50016134521 - 2⁹ = 50016134009 is a prime.

It is a super-2 number, since 2×50016134521² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50016134521.

It is not a weakly prime, because it can be changed into another prime (50016134501) 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, 25008067260 + 25008067261.

It is an arithmetic number, because the mean of its divisors is an integer number (25008067261).

Almost surely, 2^50016134521 is an apocalyptic number.

It is an amenable number.

50016134521 is a deficient number, since it is larger than the sum of its proper divisors (1).

50016134521 is an equidigital number, since it uses as much as digits as its factorization.

50016134521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 28.

Adding to 50016134521 its reverse (12543161005), we get a palindrome (62559295526).

The spelling of 50016134521 in words is "fifty billion, sixteen million, one hundred thirty-four thousand, five hundred twenty-one".