555005665 has 8 divisors (see below), whose sum is σ = 678573288. Its totient is φ = 435626880.

The previous prime is 555005611. The next prime is 555005669. The reversal of 555005665 is 566500555.

It can be written as a sum of positive squares in 4 ways, for example, as 36578304 + 518427361 = 6048^2 + 22769^2 .

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

It is not a de Polignac number, because 555005665 - 2¹³ = 554997473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (555005669) 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 7 ways as a sum of consecutive naturals, for example, 1046916 + ... + 1047445.

It is an arithmetic number, because the mean of its divisors is an integer number (84821661).

Almost surely, 2^555005665 is an apocalyptic number.

It is an amenable number.

555005665 is a deficient number, since it is larger than the sum of its proper divisors (123567623).

555005665 is a wasteful number, since it uses less digits than its factorization.

555005665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2094419.

The product of its (nonzero) digits is 112500, while the sum is 37.

The square root of 555005665 is about 23558.5582114016. The cubic root of 555005665 is about 821.7993725608.

The spelling of 555005665 in words is "five hundred fifty-five million, five thousand, six hundred sixty-five".