52125132121 has 16 divisors (see below), whose sum is σ = 54650880000. Its totient is φ = 49649011776.

The previous prime is 52125132119. The next prime is 52125132173. The reversal of 52125132121 is 12123152125.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 52125132121 - 2¹ = 52125132119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52125132421) 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 15 ways as a sum of consecutive naturals, for example, 2921295 + ... + 2939083.

It is an arithmetic number, because the mean of its divisors is an integer number (3415680000).

Almost surely, 2^52125132121 is an apocalyptic number.

It is an amenable number.

52125132121 is a deficient number, since it is larger than the sum of its proper divisors (2525747879).

52125132121 is a wasteful number, since it uses less digits than its factorization.

52125132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19176.

The product of its digits is 1200, while the sum is 25.

Adding to 52125132121 its reverse (12123152125), we get a palindrome (64248284246).

The spelling of 52125132121 in words is "fifty-two billion, one hundred twenty-five million, one hundred thirty-two thousand, one hundred twenty-one".