50450210521 has 2 divisors, whose sum is σ = 50450210522. Its totient is φ = 50450210520.

The previous prime is 50450210513. The next prime is 50450210549. The reversal of 50450210521 is 12501205405.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50321705625 + 128504896 = 224325^2 + 11336^2 .

It is a cyclic number.

It is not a de Polignac number, because 50450210521 - 2³ = 50450210513 is a prime.

It is a super-2 number, since 2×50450210521² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (50450210561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25225105260 + 25225105261.

It is an arithmetic number, because the mean of its divisors is an integer number (25225105261).

Almost surely, 2^50450210521 is an apocalyptic number.

It is an amenable number.

50450210521 is a deficient number, since it is larger than the sum of its proper divisors (1).

50450210521 is an equidigital number, since it uses as much as digits as its factorization.

50450210521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

Adding to 50450210521 its reverse (12501205405), we get a palindrome (62951415926).

The spelling of 50450210521 in words is "fifty billion, four hundred fifty million, two hundred ten thousand, five hundred twenty-one".