53179818 has 48 divisors (see below), whose sum is σ = 114965568. Its totient is φ = 16368000.

The previous prime is 53179817. The next prime is 53179897. The reversal of 53179818 is 81897135.

It is a self number, because there is not a number n which added to its sum of digits gives 53179818.

It is not an unprimeable number, because it can be changed into a prime (53179813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 132418 + ... + 132818.

It is an arithmetic number, because the mean of its divisors is an integer number (2395116).

Almost surely, 2^53179818 is an apocalyptic number.

53179818 is an abundant number, since it is smaller than the sum of its proper divisors (61785750).

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

53179818 is a wasteful number, since it uses less digits than its factorization.

53179818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 460 counting only the distinct ones).

The product of its digits is 60480, while the sum is 42.

The square root of 53179818 is about 7292.4493827520. The cubic root of 53179818 is about 376.0529058269.

The spelling of 53179818 in words is "fifty-three million, one hundred seventy-nine thousand, eight hundred eighteen".