53108443 has 2 divisors, whose sum is σ = 53108444. Its totient is φ = 53108442.

The previous prime is 53108399. The next prime is 53108453. The reversal of 53108443 is 34480135.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53108443 is a prime.

It is not a weakly prime, because it can be changed into another prime (53108453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26554221 + 26554222.

It is an arithmetic number, because the mean of its divisors is an integer number (26554222).

Almost surely, 2^53108443 is an apocalyptic number.

53108443 is a deficient number, since it is larger than the sum of its proper divisors (1).

53108443 is an equidigital number, since it uses as much as digits as its factorization.

53108443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 53108443 is about 7287.5539792169. The cubic root of 53108443 is about 375.8845913911.

Adding to 53108443 its reverse (34480135), we get a palindrome (87588578).

The spelling of 53108443 in words is "fifty-three million, one hundred eight thousand, four hundred forty-three".