52669618 has 4 divisors (see below), whose sum is σ = 79004430. Its totient is φ = 26334808.

The previous prime is 52669607. The next prime is 52669637. The reversal of 52669618 is 81696625.

52669618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 29888089 + 22781529 = 5467^2 + 4773^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 13167403 + ... + 13167406.

Almost surely, 2^52669618 is an apocalyptic number.

52669618 is a deficient number, since it is larger than the sum of its proper divisors (26334812).

52669618 is a wasteful number, since it uses less digits than its factorization.

52669618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26334811.

The product of its digits is 155520, while the sum is 43.

The square root of 52669618 is about 7257.3836883549. The cubic root of 52669618 is about 374.8464390519.

It can be divided in two parts, 5266 and 9618, that added together give a square (14884 = 122²).

The spelling of 52669618 in words is "fifty-two million, six hundred sixty-nine thousand, six hundred eighteen".