52147263587 has 4 divisors (see below), whose sum is σ = 53945445120. Its totient is φ = 50349082056.

The previous prime is 52147263551. The next prime is 52147263601. The reversal of 52147263587 is 78536274125.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52147263587 - 2⁸ = 52147263331 is a prime.

It is a super-2 number, since 2×52147263587² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52147263517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 899090723 + ... + 899090780.

It is an arithmetic number, because the mean of its divisors is an integer number (13486361280).

Almost surely, 2^52147263587 is an apocalyptic number.

52147263587 is a deficient number, since it is larger than the sum of its proper divisors (1798181533).

52147263587 is a wasteful number, since it uses less digits than its factorization.

52147263587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798181532.

The product of its digits is 2822400, while the sum is 50.

The spelling of 52147263587 in words is "fifty-two billion, one hundred forty-seven million, two hundred sixty-three thousand, five hundred eighty-seven".