5215644653 has 16 divisors (see below), whose sum is σ = 5401249776. Its totient is φ = 5032581120.

The previous prime is 5215644649. The next prime is 5215644667. The reversal of 5215644653 is 3564465125.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 48622729 + 5167021924 = 6973^2 + 71882^2 .

It is a cyclic number.

It is not a de Polignac number, because 5215644653 - 2² = 5215644649 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5215644653.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5215644673) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2421425 + ... + 2423577.

It is an arithmetic number, because the mean of its divisors is an integer number (337578111).

Almost surely, 2^5215644653 is an apocalyptic number.

It is an amenable number.

5215644653 is a deficient number, since it is larger than the sum of its proper divisors (185605123).

5215644653 is a wasteful number, since it uses less digits than its factorization.

5215644653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2704.

The product of its digits is 432000, while the sum is 41.

The square root of 5215644653 is about 72219.4201929093. The cubic root of 5215644653 is about 1734.2139083854.

The spelling of 5215644653 in words is "five billion, two hundred fifteen million, six hundred forty-four thousand, six hundred fifty-three".