6549975522 has 16 divisors (see below), whose sum is σ = 14555501280. Its totient is φ = 2183325156.

The previous prime is 6549975499. The next prime is 6549975527. The reversal of 6549975522 is 2255799456.

6549975522 is a `hidden beast` number, since 6 + 5 + 49 + 9 + 75 + 522 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 121295843 = 6549975522 / (6 + 5 + 4 + 9 + 9 + 7 + 5 + 5 + 2 + 2).

It is not an unprimeable number, because it can be changed into a prime (6549975527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60647868 + ... + 60647975.

It is an arithmetic number, because the mean of its divisors is an integer number (909718830).

Almost surely, 2^6549975522 is an apocalyptic number.

6549975522 is an abundant number, since it is smaller than the sum of its proper divisors (8005525758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6549975522 is a wasteful number, since it uses less digits than its factorization.

6549975522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121295854 (or 121295848 counting only the distinct ones).

The product of its digits is 6804000, while the sum is 54.

The square root of 6549975522 is about 80931.9190554629. The cubic root of 6549975522 is about 1871.0263006230.

The spelling of 6549975522 in words is "six billion, five hundred forty-nine million, nine hundred seventy-five thousand, five hundred twenty-two".