555065566 has 8 divisors (see below), whose sum is σ = 908289144. Its totient is φ = 252302520.

The previous prime is 555065561. The next prime is 555065579. The reversal of 555065566 is 665560555.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555065561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12615105 + ... + 12615148.

It is an arithmetic number, because the mean of its divisors is an integer number (113536143).

Almost surely, 2^555065566 is an apocalyptic number.

555065566 is a deficient number, since it is larger than the sum of its proper divisors (353223578).

555065566 is a wasteful number, since it uses less digits than its factorization.

555065566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25230266.

The product of its (nonzero) digits is 675000, while the sum is 43.

The square root of 555065566 is about 23559.8294985342. The cubic root of 555065566 is about 821.8289367235.

It can be divided in two parts, 55506556 and 6, that multiplied together give a triangular number (333039336 = T₂₅₈₀₈).

The spelling of 555065566 in words is "five hundred fifty-five million, sixty-five thousand, five hundred sixty-six".