53869219 has 4 divisors (see below), whose sum is σ = 53940040. Its totient is φ = 53798400.

The previous prime is 53869213. The next prime is 53869223. The reversal of 53869219 is 91296835.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53869219 - 2¹⁵ = 53836451 is a prime.

It is a super-2 number, since 2×53869219² = 5803785511339922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53869213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34257 + ... + 35794.

It is an arithmetic number, because the mean of its divisors is an integer number (13485010).

Almost surely, 2^53869219 is an apocalyptic number.

53869219 is the 4238-th hex number.

53869219 is a deficient number, since it is larger than the sum of its proper divisors (70821).

53869219 is an equidigital number, since it uses as much as digits as its factorization.

53869219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70820.

The product of its digits is 116640, while the sum is 43.

The square root of 53869219 is about 7339.5653141041. The cubic root of 53869219 is about 377.6709317568.

The spelling of 53869219 in words is "fifty-three million, eight hundred sixty-nine thousand, two hundred nineteen".