5515530553 has 4 divisors (see below), whose sum is σ = 5939802148. Its totient is φ = 5091258960.

The previous prime is 5515530523. The next prime is 5515530557. The reversal of 5515530553 is 3550355155.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 227768464 + 5287762089 = 15092^2 + 72717^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5515530553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5515530557) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 212135778 + ... + 212135803.

It is an arithmetic number, because the mean of its divisors is an integer number (1484950537).

Almost surely, 2^5515530553 is an apocalyptic number.

It is an amenable number.

5515530553 is a deficient number, since it is larger than the sum of its proper divisors (424271595).

5515530553 is a wasteful number, since it uses less digits than its factorization.

5515530553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424271594.

The product of its (nonzero) digits is 140625, while the sum is 37.

The square root of 5515530553 is about 74266.6180258668. The cubic root of 5515530553 is about 1766.8340687501.

The spelling of 5515530553 in words is "five billion, five hundred fifteen million, five hundred thirty thousand, five hundred fifty-three".