53423618 has 16 divisors (see below), whose sum is σ = 83963520. Its totient is φ = 25445376.

The previous prime is 53423609. The next prime is 53423621. The reversal of 53423618 is 81632435.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9563 + ... + 14081.

It is an arithmetic number, because the mean of its divisors is an integer number (5247720).

Almost surely, 2^53423618 is an apocalyptic number.

53423618 is a deficient number, since it is larger than the sum of its proper divisors (30539902).

53423618 is a wasteful number, since it uses less digits than its factorization.

53423618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4801.

The product of its digits is 17280, while the sum is 32.

The square root of 53423618 is about 7309.1461881673. The cubic root of 53423618 is about 376.6266946210.

The spelling of 53423618 in words is "fifty-three million, four hundred twenty-three thousand, six hundred eighteen".