53431223 has 4 divisors (see below), whose sum is σ = 53740248. Its totient is φ = 53122200.

The previous prime is 53431193. The next prime is 53431229. The reversal of 53431223 is 32213435.

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 53431223 - 2¹⁶ = 53365687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53431229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 154253 + ... + 154598.

It is an arithmetic number, because the mean of its divisors is an integer number (13435062).

Almost surely, 2^53431223 is an apocalyptic number.

53431223 is a deficient number, since it is larger than the sum of its proper divisors (309025).

53431223 is a wasteful number, since it uses less digits than its factorization.

53431223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309024.

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

The square root of 53431223 is about 7309.6664082569. Note that the first 3 decimals coincide. The cubic root of 53431223 is about 376.6445650575.

Adding to 53431223 its reverse (32213435), we get a palindrome (85644658).

The spelling of 53431223 in words is "fifty-three million, four hundred thirty-one thousand, two hundred twenty-three".