53318442 has 8 divisors (see below), whose sum is σ = 106636896. Its totient is φ = 17772812.

The previous prime is 53318429. The next prime is 53318459. The reversal of 53318442 is 24481335.

53318442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

53318442 is an admirable number.

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 in 3 ways as a sum of consecutive naturals, for example, 4443198 + ... + 4443209.

It is an arithmetic number, because the mean of its divisors is an integer number (13329612).

Almost surely, 2^53318442 is an apocalyptic number.

53318442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

53318442 is a wasteful number, since it uses less digits than its factorization.

53318442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8886412.

The product of its digits is 11520, while the sum is 30.

The square root of 53318442 is about 7301.9478223280. The cubic root of 53318442 is about 376.3793750884.

Adding to 53318442 its reverse (24481335), we get a palindrome (77799777).

The spelling of 53318442 in words is "fifty-three million, three hundred eighteen thousand, four hundred forty-two".