53253443 has 4 divisors (see below), whose sum is σ = 54971328. Its totient is φ = 51535560.

The previous prime is 53253439. The next prime is 53253449. The reversal of 53253443 is 34435235.

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 53253443 - 2² = 53253439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53253449) 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, 858896 + ... + 858957.

It is an arithmetic number, because the mean of its divisors is an integer number (13742832).

Almost surely, 2^53253443 is an apocalyptic number.

53253443 is a deficient number, since it is larger than the sum of its proper divisors (1717885).

53253443 is a wasteful number, since it uses less digits than its factorization.

53253443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1717884.

The product of its digits is 21600, while the sum is 29.

The square root of 53253443 is about 7297.4956663228. The cubic root of 53253443 is about 376.2263684234.

Adding to 53253443 its reverse (34435235), we get a palindrome (87688678).

The spelling of 53253443 in words is "fifty-three million, two hundred fifty-three thousand, four hundred forty-three".