6549908225 has 12 divisors (see below), whose sum is σ = 9282155904. Its totient is φ = 4491365520.

The previous prime is 6549908179. The next prime is 6549908269. The reversal of 6549908225 is 5228099456.

It is not a de Polignac number, because 6549908225 - 2¹⁴ = 6549891841 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18713849 + ... + 18714198.

It is an arithmetic number, because the mean of its divisors is an integer number (773512992).

Almost surely, 2^6549908225 is an apocalyptic number.

It is an amenable number.

6549908225 is a deficient number, since it is larger than the sum of its proper divisors (2732247679).

6549908225 is a wasteful number, since it uses less digits than its factorization.

6549908225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37428064 (or 37428059 counting only the distinct ones).

The product of its (nonzero) digits is 1555200, while the sum is 50.

The square root of 6549908225 is about 80931.5032913636. The cubic root of 6549908225 is about 1871.0198927167.

The spelling of 6549908225 in words is "six billion, five hundred forty-nine million, nine hundred eight thousand, two hundred twenty-five".