55267618 has 32 divisors (see below), whose sum is σ = 100391040. Its totient is φ = 22291200.

The previous prime is 55267613. The next prime is 55267657. The reversal of 55267618 is 81676255.

It is not an unprimeable number, because it can be changed into a prime (55267613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45418 + ... + 46618.

It is an arithmetic number, because the mean of its divisors is an integer number (3137220).

Almost surely, 2^55267618 is an apocalyptic number.

55267618 is a deficient number, since it is larger than the sum of its proper divisors (45123422).

55267618 is a wasteful number, since it uses less digits than its factorization.

55267618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its digits is 100800, while the sum is 40.

The square root of 55267618 is about 7434.2193941261. The cubic root of 55267618 is about 380.9110595801.

The spelling of 55267618 in words is "fifty-five million, two hundred sixty-seven thousand, six hundred eighteen".