5237245665 has 12 divisors (see below), whose sum is σ = 9077892564. Its totient is φ = 2793197664.

The previous prime is 5237245639. The next prime is 5237245693. The reversal of 5237245665 is 5665427325.

5237245665 is a `hidden beast` number, since 52 + 37 + 2 + 4 + 566 + 5 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3822206976 + 1415038689 = 61824^2 + 37617^2 .

It is not a de Polignac number, because 5237245665 - 2¹⁷ = 5237114593 is a prime.

It is a super-2 number, since 2×5237245665² = 54857484311122584450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 116383237 = 5237245665 / (5 + 2 + 3 + 7 + 2 + 4 + 5 + 6 + 6 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 5237245665.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 58191574 + ... + 58191663.

It is an arithmetic number, because the mean of its divisors is an integer number (756491047).

Almost surely, 2^5237245665 is an apocalyptic number.

It is an amenable number.

5237245665 is a deficient number, since it is larger than the sum of its proper divisors (3840646899).

5237245665 is a wasteful number, since it uses less digits than its factorization.

5237245665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116383248 (or 116383245 counting only the distinct ones).

The product of its digits is 1512000, while the sum is 45.

The square root of 5237245665 is about 72368.8169379602. The cubic root of 5237245665 is about 1736.6047396244.

The spelling of 5237245665 in words is "five billion, two hundred thirty-seven million, two hundred forty-five thousand, six hundred sixty-five".