55666265 has 8 divisors (see below), whose sum is σ = 66853320. Its totient is φ = 44497152.

The previous prime is 55666249. The next prime is 55666267. The reversal of 55666265 is 56266655.

55666265 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 10883401 + 44782864 = 3299^2 + 6692^2 .

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 55666265 - 2⁴ = 55666249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55666267) 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, 3707 + ... + 11183.

It is an arithmetic number, because the mean of its divisors is an integer number (8356665).

Almost surely, 2^55666265 is an apocalyptic number.

It is an amenable number.

55666265 is a deficient number, since it is larger than the sum of its proper divisors (11187055).

55666265 is a wasteful number, since it uses less digits than its factorization.

55666265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8971.

The product of its digits is 324000, while the sum is 41.

The square root of 55666265 is about 7460.9828441030. The cubic root of 55666265 is about 381.8247073629.

The spelling of 55666265 in words is "fifty-five million, six hundred sixty-six thousand, two hundred sixty-five".