555221041 has 2 divisors, whose sum is σ = 555221042. Its totient is φ = 555221040.

The previous prime is 555221033. The next prime is 555221087. The reversal of 555221041 is 140122555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520752400 + 34468641 = 22820^2 + 5871^2 .

It is a cyclic number.

It is not a de Polignac number, because 555221041 - 2³ = 555221033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 555220997 and 555221015.

It is not a weakly prime, because it can be changed into another prime (555231041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277610520 + 277610521.

It is an arithmetic number, because the mean of its divisors is an integer number (277610521).

Almost surely, 2^555221041 is an apocalyptic number.

It is an amenable number.

555221041 is a deficient number, since it is larger than the sum of its proper divisors (1).

555221041 is an equidigital number, since it uses as much as digits as its factorization.

555221041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 555221041 is about 23563.1288457200. The cubic root of 555221041 is about 821.9056615489.

Adding to 555221041 its reverse (140122555), we get a palindrome (695343596).

The spelling of 555221041 in words is "five hundred fifty-five million, two hundred twenty-one thousand, forty-one".