5547087509 has 2 divisors, whose sum is σ = 5547087510. Its totient is φ = 5547087508.

The previous prime is 5547087461. The next prime is 5547087569. The reversal of 5547087509 is 9057807455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5517221284 + 29866225 = 74278^2 + 5465^2 .

It is a cyclic number.

It is not a de Polignac number, because 5547087509 - 2⁸ = 5547087253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5547087569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2773543754 + 2773543755.

It is an arithmetic number, because the mean of its divisors is an integer number (2773543755).

Almost surely, 2^5547087509 is an apocalyptic number.

It is an amenable number.

5547087509 is a deficient number, since it is larger than the sum of its proper divisors (1).

5547087509 is an equidigital number, since it uses as much as digits as its factorization.

5547087509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1764000, while the sum is 50.

The square root of 5547087509 is about 74478.7722038971. The cubic root of 5547087509 is about 1770.1972934876.

The spelling of 5547087509 in words is "five billion, five hundred forty-seven million, eighty-seven thousand, five hundred nine".