52552050121 has 4 divisors (see below), whose sum is σ = 52558413700. Its totient is φ = 52545686544.

The previous prime is 52552050107. The next prime is 52552050151. The reversal of 52552050121 is 12105025525.

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 33329614096 + 19222436025 = 182564^2 + 138645^2 .

It is a cyclic number.

It is not a de Polignac number, because 52552050121 - 2⁹ = 52552049609 is a prime.

It is a super-2 number, since 2×52552050121² (a number of 22 digits) contains 22 as substring.

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 52552050121.

It is not an unprimeable number, because it can be changed into a prime (52552050151) 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 3 ways as a sum of consecutive naturals, for example, 3169386 + ... + 3185923.

It is an arithmetic number, because the mean of its divisors is an integer number (13139603425).

Almost surely, 2^52552050121 is an apocalyptic number.

It is an amenable number.

52552050121 is a deficient number, since it is larger than the sum of its proper divisors (6363579).

52552050121 is an equidigital number, since it uses as much as digits as its factorization.

52552050121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6363578.

The product of its (nonzero) digits is 5000, while the sum is 28.

Adding to 52552050121 its reverse (12105025525), we get a palindrome (64657075646).

The spelling of 52552050121 in words is "fifty-two billion, five hundred fifty-two million, fifty thousand, one hundred twenty-one".