5288642665 has 8 divisors (see below), whose sum is σ = 6352872840. Its totient is φ = 4226579712.

The previous prime is 5288642657. The next prime is 5288642677. The reversal of 5288642665 is 5662468825.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2696101776 + 2592540889 = 51924^2 + 50917^2 .

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 5288642665 - 2³ = 5288642657 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, 536430 + ... + 546199.

It is an arithmetic number, because the mean of its divisors is an integer number (794109105).

Almost surely, 2^5288642665 is an apocalyptic number.

It is an amenable number.

5288642665 is a deficient number, since it is larger than the sum of its proper divisors (1064230175).

5288642665 is a wasteful number, since it uses less digits than its factorization.

5288642665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083611.

The product of its digits is 5529600, while the sum is 52.

The square root of 5288642665 is about 72723.0545631851. The cubic root of 5288642665 is about 1742.2671228422.

The spelling of 5288642665 in words is "five billion, two hundred eighty-eight million, six hundred forty-two thousand, six hundred sixty-five".