52405111121 has 8 divisors (see below), whose sum is σ = 57175626144. Its totient is φ = 47635665120.

The previous prime is 52405111111. The next prime is 52405111127. The reversal of 52405111121 is 12111150425.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52405111121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (52405111127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162980 + ... + 362453.

It is an arithmetic number, because the mean of its divisors is an integer number (7146953268).

Almost surely, 2^52405111121 is an apocalyptic number.

It is an amenable number.

52405111121 is a deficient number, since it is larger than the sum of its proper divisors (4770515023).

52405111121 is a wasteful number, since it uses less digits than its factorization.

52405111121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534511.

The product of its (nonzero) digits is 400, while the sum is 23.

Adding to 52405111121 its reverse (12111150425), we get a palindrome (64516261546).

The spelling of 52405111121 in words is "fifty-two billion, four hundred five million, one hundred eleven thousand, one hundred twenty-one".