53843431 has 2 divisors, whose sum is σ = 53843432. Its totient is φ = 53843430.

The previous prime is 53843407. The next prime is 53843441. The reversal of 53843431 is 13434835.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53843431 - 2⁷ = 53843303 is a prime.

It is a super-2 number, since 2×53843431² = 5798230123703522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 53843393 and 53843402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53843441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26921715 + 26921716.

It is an arithmetic number, because the mean of its divisors is an integer number (26921716).

Almost surely, 2^53843431 is an apocalyptic number.

53843431 is a deficient number, since it is larger than the sum of its proper divisors (1).

53843431 is an equidigital number, since it uses as much as digits as its factorization.

53843431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 53843431 is about 7337.8083240161. The cubic root of 53843431 is about 377.6106565649.

The spelling of 53843431 in words is "fifty-three million, eight hundred forty-three thousand, four hundred thirty-one".