554325521 has 2 divisors, whose sum is σ = 554325522. Its totient is φ = 554325520.

The previous prime is 554325491. The next prime is 554325523. The reversal of 554325521 is 125523455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530657296 + 23668225 = 23036^2 + 4865^2 .

It is a cyclic number.

It is not a de Polignac number, because 554325521 - 2¹⁰ = 554324497 is a prime.

Together with 554325523, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (554325523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277162760 + 277162761.

It is an arithmetic number, because the mean of its divisors is an integer number (277162761).

Almost surely, 2^554325521 is an apocalyptic number.

It is an amenable number.

554325521 is a deficient number, since it is larger than the sum of its proper divisors (1).

554325521 is an equidigital number, since it uses as much as digits as its factorization.

554325521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 30000, while the sum is 32.

The square root of 554325521 is about 23544.1186074145. The cubic root of 554325521 is about 821.4635379163.

Adding to 554325521 its reverse (125523455), we get a palindrome (679848976).

The spelling of 554325521 in words is "five hundred fifty-four million, three hundred twenty-five thousand, five hundred twenty-one".