52218453 has 8 divisors (see below), whose sum is σ = 79571008. Its totient is φ = 29839104.

The previous prime is 52218449. The next prime is 52218497. The reversal of 52218453 is 35481225.

52218453 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.

It is not a de Polignac number, because 52218453 - 2² = 52218449 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52218453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52218053) 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, 1243276 + ... + 1243317.

It is an arithmetic number, because the mean of its divisors is an integer number (9946376).

Almost surely, 2^52218453 is an apocalyptic number.

It is an amenable number.

52218453 is a deficient number, since it is larger than the sum of its proper divisors (27352555).

52218453 is a wasteful number, since it uses less digits than its factorization.

52218453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2486603.

The product of its digits is 9600, while the sum is 30.

The square root of 52218453 is about 7226.2336663022. The cubic root of 52218453 is about 373.7730638295.

Adding to 52218453 its reverse (35481225), we get a palindrome (87699678).

The spelling of 52218453 in words is "fifty-two million, two hundred eighteen thousand, four hundred fifty-three".