50521263213 has 4 divisors (see below), whose sum is σ = 67361684288. Its totient is φ = 33680842140.

The previous prime is 50521263197. The next prime is 50521263229. The reversal of 50521263213 is 31236212505.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (50521263197) and next prime (50521263229).

It is not a de Polignac number, because 50521263213 - 2⁴ = 50521263197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50521263293) 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 in 3 ways as a sum of consecutive naturals, for example, 8420210533 + ... + 8420210538.

It is an arithmetic number, because the mean of its divisors is an integer number (16840421072).

Almost surely, 2^50521263213 is an apocalyptic number.

It is an amenable number.

50521263213 is a deficient number, since it is larger than the sum of its proper divisors (16840421075).

50521263213 is a wasteful number, since it uses less digits than its factorization.

50521263213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16840421074.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 50521263213 its reverse (31236212505), we get a palindrome (81757475718).

The spelling of 50521263213 in words is "fifty billion, five hundred twenty-one million, two hundred sixty-three thousand, two hundred thirteen".