52112516021 has 2 divisors, whose sum is σ = 52112516022. Its totient is φ = 52112516020.

The previous prime is 52112515991. The next prime is 52112516033. The reversal of 52112516021 is 12061521125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 41148122500 + 10964393521 = 202850^2 + 104711^2 .

It is a cyclic number.

It is not a de Polignac number, because 52112516021 - 2⁶ = 52112515957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (52112506021) 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 as a sum of consecutive naturals, namely, 26056258010 + 26056258011.

It is an arithmetic number, because the mean of its divisors is an integer number (26056258011).

Almost surely, 2^52112516021 is an apocalyptic number.

It is an amenable number.

52112516021 is a deficient number, since it is larger than the sum of its proper divisors (1).

52112516021 is an equidigital number, since it uses as much as digits as its factorization.

52112516021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1200, while the sum is 26.

The spelling of 52112516021 in words is "fifty-two billion, one hundred twelve million, five hundred sixteen thousand, twenty-one".