53243253 has 36 divisors (see below), whose sum is σ = 90150060. Its totient is φ = 30191616.

The previous prime is 53243251. The next prime is 53243279. The reversal of 53243253 is 35234235.

It can be written as a sum of positive squares in 2 ways, for example, as 18173169 + 35070084 = 4263^2 + 5922^2 .

It is not a de Polignac number, because 53243253 - 2¹ = 53243251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53243251) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 68853 + ... + 69621.

Almost surely, 2^53243253 is an apocalyptic number.

It is an amenable number.

53243253 is a deficient number, since it is larger than the sum of its proper divisors (36906807).

53243253 is a wasteful number, since it uses less digits than its factorization.

53243253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 946 (or 936 counting only the distinct ones).

The product of its digits is 10800, while the sum is 27.

The square root of 53243253 is about 7296.7974481960. The cubic root of 53243253 is about 376.2023700298.

Adding to 53243253 its reverse (35234235), we get a palindrome (88477488).

The spelling of 53243253 in words is "fifty-three million, two hundred forty-three thousand, two hundred fifty-three".