53408231 has 8 divisors (see below), whose sum is σ = 55849824. Its totient is φ = 50976640.

The previous prime is 53408209. The next prime is 53408239. The reversal of 53408231 is 13280435.

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 53408231 - 2⁶ = 53408167 is a prime.

It is a super-2 number, since 2×53408231² = 5704878277098722, 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 53408231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53408239) 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 7 ways as a sum of consecutive naturals, for example, 9755 + ... + 14211.

It is an arithmetic number, because the mean of its divisors is an integer number (6981228).

Almost surely, 2^53408231 is an apocalyptic number.

53408231 is a deficient number, since it is larger than the sum of its proper divisors (2441593).

53408231 is a wasteful number, since it uses less digits than its factorization.

53408231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5001.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 53408231 is about 7308.0935270425. The cubic root of 53408231 is about 376.5905326410.

Adding to 53408231 its reverse (13280435), we get a palindrome (66688666).

The spelling of 53408231 in words is "fifty-three million, four hundred eight thousand, two hundred thirty-one".