53643043 has 2 divisors, whose sum is σ = 53643044. Its totient is φ = 53643042.

The previous prime is 53643013. The next prime is 53643067. The reversal of 53643043 is 34034635.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 53643043 - 2¹³ = 53634851 is a prime.

It is not a weakly prime, because it can be changed into another prime (53643013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26821521 + 26821522.

It is an arithmetic number, because the mean of its divisors is an integer number (26821522).

Almost surely, 2^53643043 is an apocalyptic number.

53643043 is a deficient number, since it is larger than the sum of its proper divisors (1).

53643043 is an equidigital number, since it uses as much as digits as its factorization.

53643043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 53643043 is about 7324.1411100552. The cubic root of 53643043 is about 377.1416255931.

Adding to 53643043 its reverse (34034635), we get a palindrome (87677678).

The spelling of 53643043 in words is "fifty-three million, six hundred forty-three thousand, forty-three".