52005144987 has 20 divisors (see below), whose sum is σ = 78025969120. Its totient is φ = 34518686544.

The previous prime is 52005144977. The next prime is 52005144991. The reversal of 52005144987 is 78944150025.

52005144987 is a `hidden beast` number, since 52 + 0 + 0 + 514 + 4 + 9 + 87 = 666.

It is not a de Polignac number, because 52005144987 - 2⁶ = 52005144923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52005144937) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1383283 + ... + 1420380.

It is an arithmetic number, because the mean of its divisors is an integer number (3901298456).

Almost surely, 2^52005144987 is an apocalyptic number.

52005144987 is a deficient number, since it is larger than the sum of its proper divisors (26020824133).

52005144987 is a wasteful number, since it uses less digits than its factorization.

52005144987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803904 (or 2803895 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 45.

The spelling of 52005144987 in words is "fifty-two billion, five million, one hundred forty-four thousand, nine hundred eighty-seven".