553255665 has 16 divisors (see below), whose sum is σ = 899722176. Its totient is φ = 290232000.

The previous prime is 553255663. The next prime is 553255669. The reversal of 553255665 is 566552355.

553255665 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 553255665 - 2¹ = 553255663 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (553255663) 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 15 ways as a sum of consecutive naturals, for example, 301411 + ... + 303240.

It is an arithmetic number, because the mean of its divisors is an integer number (56232636).

Almost surely, 2^553255665 is an apocalyptic number.

It is an amenable number.

553255665 is a deficient number, since it is larger than the sum of its proper divisors (346466511).

553255665 is a wasteful number, since it uses less digits than its factorization.

553255665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604720.

The product of its digits is 675000, while the sum is 42.

The square root of 553255665 is about 23521.3873953047. The cubic root of 553255665 is about 820.9347188593.

The spelling of 553255665 in words is "five hundred fifty-three million, two hundred fifty-five thousand, six hundred sixty-five".