54521443 has 2 divisors, whose sum is σ = 54521444. Its totient is φ = 54521442.

The previous prime is 54521407. The next prime is 54521447. The reversal of 54521443 is 34412545.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54521443 is a prime.

It is not a weakly prime, because it can be changed into another prime (54521447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27260721 + 27260722.

It is an arithmetic number, because the mean of its divisors is an integer number (27260722).

Almost surely, 2^54521443 is an apocalyptic number.

54521443 is a deficient number, since it is larger than the sum of its proper divisors (1).

54521443 is an equidigital number, since it uses as much as digits as its factorization.

54521443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9600, while the sum is 28.

The square root of 54521443 is about 7383.8636905078. The cubic root of 54521443 is about 379.1890438886.

Adding to 54521443 its reverse (34412545), we get a palindrome (88933988).

The spelling of 54521443 in words is "fifty-four million, five hundred twenty-one thousand, four hundred forty-three".