53821219 has 8 divisors (see below), whose sum is σ = 56593152. Its totient is φ = 51085320.

The previous prime is 53821213. The next prime is 53821231. The reversal of 53821219 is 91212835.

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

It is a cyclic number.

It is not a de Polignac number, because 53821219 - 2⁹ = 53820707 is a prime.

It is a super-3 number, since 3×53821219³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53821213) 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, 5919 + ... + 11944.

It is an arithmetic number, because the mean of its divisors is an integer number (7074144).

Almost surely, 2^53821219 is an apocalyptic number.

53821219 is a deficient number, since it is larger than the sum of its proper divisors (2771933).

53821219 is a wasteful number, since it uses less digits than its factorization.

53821219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18017.

The product of its digits is 4320, while the sum is 31.

The square root of 53821219 is about 7336.2946369404. The cubic root of 53821219 is about 377.5587242532.

The spelling of 53821219 in words is "fifty-three million, eight hundred twenty-one thousand, two hundred nineteen".