54441521 has 2 divisors, whose sum is σ = 54441522. Its totient is φ = 54441520.

The previous prime is 54441503. The next prime is 54441533. The reversal of 54441521 is 12514445.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37957921 + 16483600 = 6161^2 + 4060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-54441521 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54441421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27220760 + 27220761.

It is an arithmetic number, because the mean of its divisors is an integer number (27220761).

Almost surely, 2^54441521 is an apocalyptic number.

It is an amenable number.

54441521 is a deficient number, since it is larger than the sum of its proper divisors (1).

54441521 is an equidigital number, since it uses as much as digits as its factorization.

54441521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3200, while the sum is 26.

The square root of 54441521 is about 7378.4497694299. The cubic root of 54441521 is about 379.0036711540.

Adding to 54441521 its reverse (12514445), we get a palindrome (66955966).

The spelling of 54441521 in words is "fifty-four million, four hundred forty-one thousand, five hundred twenty-one".