5516235221 has 12 divisors (see below), whose sum is σ = 6467378688. Its totient is φ = 4690966392.

The previous prime is 5516235187. The next prime is 5516235227. The reversal of 5516235221 is 1225326155.

5516235221 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-5516235221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5516235227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 436991 + ... + 449436.

It is an arithmetic number, because the mean of its divisors is an integer number (538948224).

Almost surely, 2^5516235221 is an apocalyptic number.

It is an amenable number.

5516235221 is a deficient number, since it is larger than the sum of its proper divisors (951143467).

5516235221 is a wasteful number, since it uses less digits than its factorization.

5516235221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 886568 (or 886561 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 5516235221 is about 74271.3620516010. The cubic root of 5516235221 is about 1766.9093095270.

The spelling of 5516235221 in words is "five billion, five hundred sixteen million, two hundred thirty-five thousand, two hundred twenty-one".