52021111401 has 24 divisors (see below), whose sum is σ = 85891977600. Its totient is φ = 29720860416.

The previous prime is 52021111393. The next prime is 52021111453. The reversal of 52021111401 is 10411112025.

52021111401 is a `hidden beast` number, since 52 + 0 + 211 + 1 + 1 + 401 = 666.

It is not a de Polignac number, because 52021111401 - 2³ = 52021111393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (52021111201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 280825 + ... + 427673.

It is an arithmetic number, because the mean of its divisors is an integer number (3578832400).

Almost surely, 2^52021111401 is an apocalyptic number.

It is an amenable number.

52021111401 is a deficient number, since it is larger than the sum of its proper divisors (33870866199).

52021111401 is a wasteful number, since it uses less digits than its factorization.

52021111401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152485 (or 152482 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

Adding to 52021111401 its reverse (10411112025), we get a palindrome (62432223426).

The spelling of 52021111401 in words is "fifty-two billion, twenty-one million, one hundred eleven thousand, four hundred one".