52785618 has 16 divisors (see below), whose sum is σ = 107302656. Its totient is φ = 17306640.

The previous prime is 52785617. The next prime is 52785619. The reversal of 52785618 is 81658725.

52785618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (52785617) and next prime (52785619).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 52785618.

It is not an unprimeable number, because it can be changed into a prime (52785611) 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, 71746 + ... + 72477.

It is an arithmetic number, because the mean of its divisors is an integer number (6706416).

Almost surely, 2^52785618 is an apocalyptic number.

52785618 is an abundant number, since it is smaller than the sum of its proper divisors (54517038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52785618 is a wasteful number, since it uses less digits than its factorization.

52785618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144289.

The product of its digits is 134400, while the sum is 42.

The square root of 52785618 is about 7265.3711536301. The cubic root of 52785618 is about 375.1214255669.

The spelling of 52785618 in words is "fifty-two million, seven hundred eighty-five thousand, six hundred eighteen".