6555612257 has 8 divisors (see below), whose sum is σ = 6802551360. Its totient is φ = 6312967920.

The previous prime is 6555612209. The next prime is 6555612269. The reversal of 6555612257 is 7522165556.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6555612257 - 2¹⁶ = 6555546721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6555612277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070582 + ... + 1076687.

It is an arithmetic number, because the mean of its divisors is an integer number (850318920).

Almost surely, 2^6555612257 is an apocalyptic number.

It is an amenable number.

6555612257 is a deficient number, since it is larger than the sum of its proper divisors (246939103).

6555612257 is a wasteful number, since it uses less digits than its factorization.

6555612257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147383.

The product of its digits is 630000, while the sum is 44.

The square root of 6555612257 is about 80966.7354967458. The cubic root of 6555612257 is about 1871.5628652511.

The spelling of 6555612257 in words is "six billion, five hundred fifty-five million, six hundred twelve thousand, two hundred fifty-seven".