50450530100521 has 4 divisors (see below), whose sum is σ = 50451241172932. Its totient is φ = 50449819028112.

The previous prime is 50450530100483. The next prime is 50450530100557. The reversal of 50450530100521 is 12500103505405.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2678394096400 + 47772136004121 = 1636580^2 + 6911739^2 .

It is a cyclic number.

It is not a de Polignac number, because 50450530100521 - 2²⁷ = 50450395882793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50450530103521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 355429770 + ... + 355571683.

It is an arithmetic number, because the mean of its divisors is an integer number (12612810293233).

Almost surely, 2^{50450530100521} is an apocalyptic number.

It is an amenable number.

50450530100521 is a deficient number, since it is larger than the sum of its proper divisors (711072411).

50450530100521 is an equidigital number, since it uses as much as digits as its factorization.

50450530100521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711072410.

The product of its (nonzero) digits is 15000, while the sum is 31.

Adding to 50450530100521 its reverse (12500103505405), we get a palindrome (62950633605926).

The spelling of 50450530100521 in words is "fifty trillion, four hundred fifty billion, five hundred thirty million, one hundred thousand, five hundred twenty-one".