52187591985 has 8 divisors (see below), whose sum is σ = 83500147200. Its totient is φ = 27833382384.

The previous prime is 52187591957. The next prime is 52187591993. The reversal of 52187591985 is 58919578125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 52187591985 - 2⁶ = 52187591921 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1739586385 + ... + 1739586414.

It is an arithmetic number, because the mean of its divisors is an integer number (10437518400).

Almost surely, 2^52187591985 is an apocalyptic number.

It is an amenable number.

52187591985 is a deficient number, since it is larger than the sum of its proper divisors (31312555215).

52187591985 is a wasteful number, since it uses less digits than its factorization.

52187591985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3479172807.

The product of its digits is 9072000, while the sum is 60.

The spelling of 52187591985 in words is "fifty-two billion, one hundred eighty-seven million, five hundred ninety-one thousand, nine hundred eighty-five".