53502243 has 4 divisors (see below), whose sum is σ = 71336328. Its totient is φ = 35668160.

The previous prime is 53502221. The next prime is 53502257. The reversal of 53502243 is 34220535.

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 53502243 - 2²⁴ = 36725027 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53502283) 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, 8917038 + ... + 8917043.

It is an arithmetic number, because the mean of its divisors is an integer number (17834082).

Almost surely, 2^53502243 is an apocalyptic number.

53502243 is a deficient number, since it is larger than the sum of its proper divisors (17834085).

53502243 is a wasteful number, since it uses less digits than its factorization.

53502243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17834084.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 53502243 is about 7314.5227458803. The cubic root of 53502243 is about 376.8113679907.

Adding to 53502243 its reverse (34220535), we get a palindrome (87722778).

The spelling of 53502243 in words is "fifty-three million, five hundred two thousand, two hundred forty-three".