555863969 has 2 divisors, whose sum is σ = 555863970. Its totient is φ = 555863968.

The previous prime is 555863963. The next prime is 555863993. The reversal of 555863969 is 969368555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 313750369 + 242113600 = 17713^2 + 15560^2 .

It is a cyclic number.

It is not a de Polignac number, because 555863969 - 2¹² = 555859873 is a prime.

It is a super-2 number, since 2×555863969² = 617969504064865922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (555863963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277931984 + 277931985.

It is an arithmetic number, because the mean of its divisors is an integer number (277931985).

Almost surely, 2^555863969 is an apocalyptic number.

It is an amenable number.

555863969 is a deficient number, since it is larger than the sum of its proper divisors (1).

555863969 is an equidigital number, since it uses as much as digits as its factorization.

555863969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8748000, while the sum is 56.

The square root of 555863969 is about 23576.7675689438. The cubic root of 555863969 is about 822.2227858943. Note that the first 3 decimals are identical.

The spelling of 555863969 in words is "five hundred fifty-five million, eight hundred sixty-three thousand, nine hundred sixty-nine".