52108987409 has 2 divisors, whose sum is σ = 52108987410. Its totient is φ = 52108987408.

The previous prime is 52108987379. The next prime is 52108987417. The reversal of 52108987409 is 90478980125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39779105809 + 12329881600 = 199447^2 + 111040^2 .

It is a cyclic number.

It is not a de Polignac number, because 52108987409 - 2¹⁶ = 52108921873 is a prime.

It is not a weakly prime, because it can be changed into another prime (52108987439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26054493704 + 26054493705.

It is an arithmetic number, because the mean of its divisors is an integer number (26054493705).

Almost surely, 2^52108987409 is an apocalyptic number.

It is an amenable number.

52108987409 is a deficient number, since it is larger than the sum of its proper divisors (1).

52108987409 is an equidigital number, since it uses as much as digits as its factorization.

52108987409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 52108987409 in words is "fifty-two billion, one hundred eight million, nine hundred eighty-seven thousand, four hundred nine".