53231243 has 8 divisors (see below), whose sum is σ = 58724736. Its totient is φ = 47937600.

The previous prime is 53231231. The next prime is 53231261. The reversal of 53231243 is 34213235.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53231243 - 2¹⁴ = 53214859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53231263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49403 + ... + 50468.

It is an arithmetic number, because the mean of its divisors is an integer number (7340592).

Almost surely, 2^53231243 is an apocalyptic number.

53231243 is a deficient number, since it is larger than the sum of its proper divisors (5493493).

53231243 is a wasteful number, since it uses less digits than its factorization.

53231243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99925.

The product of its digits is 2160, while the sum is 23.

The square root of 53231243 is about 7295.9744380035. The cubic root of 53231243 is about 376.1740814363.

Adding to 53231243 its reverse (34213235), we get a palindrome (87444478).

The spelling of 53231243 in words is "fifty-three million, two hundred thirty-one thousand, two hundred forty-three".