5243615985 has 8 divisors (see below), whose sum is σ = 8389785600. Its totient is φ = 2796595184.

The previous prime is 5243615977. The next prime is 5243615989. The reversal of 5243615985 is 5895163425.

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

It is a cyclic number.

It is not a de Polignac number, because 5243615985 - 2³ = 5243615977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5243615989) 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 in 7 ways as a sum of consecutive naturals, for example, 174787185 + ... + 174787214.

It is an arithmetic number, because the mean of its divisors is an integer number (1048723200).

Almost surely, 2^5243615985 is an apocalyptic number.

It is an amenable number.

5243615985 is a deficient number, since it is larger than the sum of its proper divisors (3146169615).

5243615985 is a wasteful number, since it uses less digits than its factorization.

5243615985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349574407.

The product of its digits is 1296000, while the sum is 48.

The square root of 5243615985 is about 72412.8164415665. The cubic root of 5243615985 is about 1737.3085603131.

The spelling of 5243615985 in words is "five billion, two hundred forty-three million, six hundred fifteen thousand, nine hundred eighty-five".