5501085521 has 4 divisors (see below), whose sum is σ = 5523911844. Its totient is φ = 5478259200.

The previous prime is 5501085511. The next prime is 5501085547. The reversal of 5501085521 is 1255801055.

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 3004684225 + 2496401296 = 54815^2 + 49964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5501085521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5501085511) 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 3 ways as a sum of consecutive naturals, for example, 11412800 + ... + 11413281.

It is an arithmetic number, because the mean of its divisors is an integer number (1380977961).

Almost surely, 2^5501085521 is an apocalyptic number.

It is an amenable number.

5501085521 is a deficient number, since it is larger than the sum of its proper divisors (22826323).

5501085521 is a wasteful number, since it uses less digits than its factorization.

5501085521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22826322.

The product of its (nonzero) digits is 10000, while the sum is 32.

The square root of 5501085521 is about 74169.3030909688. The cubic root of 5501085521 is about 1765.2902893346.

Adding to 5501085521 its reverse (1255801055), we get a palindrome (6756886576).

The spelling of 5501085521 in words is "five billion, five hundred one million, eighty-five thousand, five hundred twenty-one".