6554385791 has 4 divisors (see below), whose sum is σ = 6560192400. Its totient is φ = 6548579184.

The previous prime is 6554385743. The next prime is 6554385823. The reversal of 6554385791 is 1975834556.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6554385791 - 2⁶ = 6554385727 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 (6554385731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2901611 + ... + 2903868.

It is an arithmetic number, because the mean of its divisors is an integer number (1640048100).

Almost surely, 2^6554385791 is an apocalyptic number.

6554385791 is a deficient number, since it is larger than the sum of its proper divisors (5806609).

6554385791 is a wasteful number, since it uses less digits than its factorization.

6554385791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5806608.

The product of its digits is 4536000, while the sum is 53.

The square root of 6554385791 is about 80959.1612543015. The cubic root of 6554385791 is about 1871.4461433090.

The spelling of 6554385791 in words is "six billion, five hundred fifty-four million, three hundred eighty-five thousand, seven hundred ninety-one".