52000019987 has 2 divisors, whose sum is σ = 52000019988. Its totient is φ = 52000019986.

The previous prime is 52000019977. The next prime is 52000020029. The reversal of 52000019987 is 78991000025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 52000019987 - 2¹⁰ = 52000018963 is a prime.

It is not a weakly prime, because it can be changed into another prime (52000019977) 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, 26000009993 + 26000009994.

It is an arithmetic number, because the mean of its divisors is an integer number (26000009994).

Almost surely, 2^52000019987 is an apocalyptic number.

52000019987 is a deficient number, since it is larger than the sum of its proper divisors (1).

52000019987 is an equidigital number, since it uses as much as digits as its factorization.

52000019987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 41.

The spelling of 52000019987 in words is "fifty-two billion, nineteen thousand, nine hundred eighty-seven".