52187845019 has 2 divisors, whose sum is σ = 52187845020. Its totient is φ = 52187845018.

The previous prime is 52187844971. The next prime is 52187845057. The reversal of 52187845019 is 91054878125.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52187845019 is a prime.

It is a super-2 number, since 2×52187845019² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (52187845069) 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, 26093922509 + 26093922510.

It is an arithmetic number, because the mean of its divisors is an integer number (26093922510).

Almost surely, 2^52187845019 is an apocalyptic number.

52187845019 is a deficient number, since it is larger than the sum of its proper divisors (1).

52187845019 is an equidigital number, since it uses as much as digits as its factorization.

52187845019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 806400, while the sum is 50.

The spelling of 52187845019 in words is "fifty-two billion, one hundred eighty-seven million, eight hundred forty-five thousand, nineteen".