53343431 has 4 divisors (see below), whose sum is σ = 56151000. Its totient is φ = 50535864.

The previous prime is 53343421. The next prime is 53343439. The reversal of 53343431 is 13434335.

It is a happy number.

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 53343431 - 2¹⁴ = 53327047 is a prime.

It is a super-2 number, since 2×53343431² = 5691043261703522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 53343431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53343439) 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, 1403756 + ... + 1403793.

It is an arithmetic number, because the mean of its divisors is an integer number (14037750).

Almost surely, 2^53343431 is an apocalyptic number.

53343431 is a deficient number, since it is larger than the sum of its proper divisors (2807569).

53343431 is a wasteful number, since it uses less digits than its factorization.

53343431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807568.

The product of its digits is 6480, while the sum is 26.

The square root of 53343431 is about 7303.6587406587. The cubic root of 53343431 is about 376.4381657237.

Adding to 53343431 its reverse (13434335), we get a palindrome (66777766).

The spelling of 53343431 in words is "fifty-three million, three hundred forty-three thousand, four hundred thirty-one".