53694618 has 16 divisors (see below), whose sum is σ = 109416096. Its totient is φ = 17560400.

The previous prime is 53694611. The next prime is 53694623. The reversal of 53694618 is 81649635.

It is a super-2 number, since 2×53694618² = 5766224004331848, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 53694618.

It is not an unprimeable number, because it can be changed into a prime (53694611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84108 + ... + 84743.

It is an arithmetic number, because the mean of its divisors is an integer number (6838506).

Almost surely, 2^53694618 is an apocalyptic number.

53694618 is an abundant number, since it is smaller than the sum of its proper divisors (55721478).

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

53694618 is a wasteful number, since it uses less digits than its factorization.

53694618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168909.

The product of its digits is 155520, while the sum is 42.

The square root of 53694618 is about 7327.6611548297. The cubic root of 53694618 is about 377.2624542402.

The spelling of 53694618 in words is "fifty-three million, six hundred ninety-four thousand, six hundred eighteen".