5321516553 has 6 divisors (see below), whose sum is σ = 7686635034. Its totient is φ = 3547677696.

The previous prime is 5321516549. The next prime is 5321516593. The reversal of 5321516553 is 3556151235.

5321516553 is a `hidden beast` number, since 53 + 2 + 1 + 51 + 6 + 553 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3047371209 + 2274145344 = 55203^2 + 47688^2 .

It is not a de Polignac number, because 5321516553 - 2² = 5321516549 is a prime.

It is a super-3 number, since 3×5321516553³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (5321516593) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 295639800 + ... + 295639817.

It is an arithmetic number, because the mean of its divisors is an integer number (1281105839).

Almost surely, 2^5321516553 is an apocalyptic number.

It is an amenable number.

5321516553 is a deficient number, since it is larger than the sum of its proper divisors (2365118481).

5321516553 is a wasteful number, since it uses less digits than its factorization.

5321516553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 591279623 (or 591279620 counting only the distinct ones).

The product of its digits is 67500, while the sum is 36.

The square root of 5321516553 is about 72948.7255063445. The cubic root of 5321516553 is about 1745.8696117445.

Adding to 5321516553 its reverse (3556151235), we get a palindrome (8877667788).

The spelling of 5321516553 in words is "five billion, three hundred twenty-one million, five hundred sixteen thousand, five hundred fifty-three".