53431213 has 8 divisors (see below), whose sum is σ = 58365216. Its totient is φ = 48510000.

The previous prime is 53431193. The next prime is 53431229. The reversal of 53431213 is 31213435.

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

It is a de Polignac number, because none of the positive numbers 2^k-53431213 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 (53431243) 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, 6963 + ... + 12463.

It is an arithmetic number, because the mean of its divisors is an integer number (7295652).

Almost surely, 2^53431213 is an apocalyptic number.

It is an amenable number.

53431213 is a deficient number, since it is larger than the sum of its proper divisors (4934003).

53431213 is a wasteful number, since it uses less digits than its factorization.

53431213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6395.

The product of its digits is 1080, while the sum is 22.

The square root of 53431213 is about 7309.6657242312. The cubic root of 53431213 is about 376.6445415603.

Adding to 53431213 its reverse (31213435), we get a palindrome (84644648).

It can be divided in two parts, 5343 and 1213, that added together give a palindrome (6556).

The spelling of 53431213 in words is "fifty-three million, four hundred thirty-one thousand, two hundred thirteen".