554010043244221 has 2 divisors, whose sum is σ = 554010043244222. Its totient is φ = 554010043244220.

The previous prime is 554010043244173. The next prime is 554010043244239. The reversal of 554010043244221 is 122442340010455.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298861494087321 + 255148549156900 = 17287611^2 + 15973370^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-554010043244221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (554010043244261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277005021622110 + 277005021622111.

It is an arithmetic number, because the mean of its divisors is an integer number (277005021622111).

Almost surely, 2^{554010043244221} is an apocalyptic number.

It is an amenable number.

554010043244221 is a deficient number, since it is larger than the sum of its proper divisors (1).

554010043244221 is an equidigital number, since it uses as much as digits as its factorization.

554010043244221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 153600, while the sum is 37.

Adding to 554010043244221 its reverse (122442340010455), we get a palindrome (676452383254676).

The spelling of 554010043244221 in words is "five hundred fifty-four trillion, ten billion, forty-three million, two hundred forty-four thousand, two hundred twenty-one".