50522144021 has 4 divisors (see below), whose sum is σ = 50571628044. Its totient is φ = 50472660000.

The previous prime is 50522143999. The next prime is 50522144033. The reversal of 50522144021 is 12044122505.

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 31502700100 + 19019443921 = 177490^2 + 137911^2 .

It is a cyclic number.

It is not a de Polignac number, because 50522144021 - 2¹⁰ = 50522142997 is a prime.

It is a super-5 number, since 5×50522144021⁵ (a number of 55 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50522744021) 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, 24740480 + ... + 24742521.

It is an arithmetic number, because the mean of its divisors is an integer number (12642907011).

Almost surely, 2^50522144021 is an apocalyptic number.

It is an amenable number.

50522144021 is a deficient number, since it is larger than the sum of its proper divisors (49484023).

50522144021 is a wasteful number, since it uses less digits than its factorization.

50522144021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49484022.

The product of its (nonzero) digits is 3200, while the sum is 26.

Adding to 50522144021 its reverse (12044122505), we get a palindrome (62566266526).

The spelling of 50522144021 in words is "fifty billion, five hundred twenty-two million, one hundred forty-four thousand, twenty-one".