53043213 has 16 divisors (see below), whose sum is σ = 76481280. Its totient is φ = 32572416.

The previous prime is 53043191. The next prime is 53043239. The reversal of 53043213 is 31234035.

It is not a de Polignac number, because 53043213 - 2¹⁴ = 53026829 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 53043213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53043253) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8668 + ... + 13461.

It is an arithmetic number, because the mean of its divisors is an integer number (4780080).

Almost surely, 2^53043213 is an apocalyptic number.

It is an amenable number.

53043213 is a deficient number, since it is larger than the sum of its proper divisors (23438067).

53043213 is a wasteful number, since it uses less digits than its factorization.

53043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22196.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 53043213 is about 7283.0771655942. The cubic root of 53043213 is about 375.7306359761.

Adding to 53043213 its reverse (31234035), we get a palindrome (84277248).

The spelling of 53043213 in words is "fifty-three million, forty-three thousand, two hundred thirteen".