52546156121 has 2 divisors, whose sum is σ = 52546156122. Its totient is φ = 52546156120.

The previous prime is 52546156081. The next prime is 52546156127. The reversal of 52546156121 is 12165164525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43139290000 + 9406866121 = 207700^2 + 96989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52546156121 is a prime.

It is a super-2 number, since 2×52546156121² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (52546156127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26273078060 + 26273078061.

It is an arithmetic number, because the mean of its divisors is an integer number (26273078061).

Almost surely, 2^52546156121 is an apocalyptic number.

It is an amenable number.

52546156121 is a deficient number, since it is larger than the sum of its proper divisors (1).

52546156121 is an equidigital number, since it uses as much as digits as its factorization.

52546156121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72000, while the sum is 38.

The spelling of 52546156121 in words is "fifty-two billion, five hundred forty-six million, one hundred fifty-six thousand, one hundred twenty-one".