5243576665 has 8 divisors (see below), whose sum is σ = 6293421000. Its totient is φ = 4194108672.

The previous prime is 5243576659. The next prime is 5243576683. The reversal of 5243576665 is 5666753425.

It can be written as a sum of positive squares in 4 ways, for example, as 584285584 + 4659291081 = 24172^2 + 68259^2 .

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 5243576665 - 2⁹ = 5243576153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62464 + ... + 119953.

It is an arithmetic number, because the mean of its divisors is an integer number (786677625).

Almost surely, 2^5243576665 is an apocalyptic number.

It is an amenable number.

5243576665 is a deficient number, since it is larger than the sum of its proper divisors (1049844335).

5243576665 is a wasteful number, since it uses less digits than its factorization.

5243576665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188171.

The product of its digits is 4536000, while the sum is 49.

The square root of 5243576665 is about 72412.5449421576. The cubic root of 5243576665 is about 1737.3042178172.

The spelling of 5243576665 in words is "five billion, two hundred forty-three million, five hundred seventy-six thousand, six hundred sixty-five".