52021444411 has 4 divisors (see below), whose sum is σ = 53002981152. Its totient is φ = 51039907672.

The previous prime is 52021444399. The next prime is 52021444483. The reversal of 52021444411 is 11444412025.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 52021444411 - 2⁹ = 52021443899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52021444411.

It is not an unprimeable number, because it can be changed into a prime (52021444511) 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, 490768291 + ... + 490768396.

It is an arithmetic number, because the mean of its divisors is an integer number (13250745288).

Almost surely, 2^52021444411 is an apocalyptic number.

52021444411 is a deficient number, since it is larger than the sum of its proper divisors (981536741).

52021444411 is an equidigital number, since it uses as much as digits as its factorization.

52021444411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981536740.

The product of its (nonzero) digits is 5120, while the sum is 28.

Adding to 52021444411 its reverse (11444412025), we get a palindrome (63465856436).

The spelling of 52021444411 in words is "fifty-two billion, twenty-one million, four hundred forty-four thousand, four hundred eleven".