555871969 has 2 divisors, whose sum is σ = 555871970. Its totient is φ = 555871968.

The previous prime is 555871963. The next prime is 555872011. The reversal of 555871969 is 969178555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 539168400 + 16703569 = 23220^2 + 4087^2 .

It is a cyclic number.

It is not a de Polignac number, because 555871969 - 2⁵ = 555871937 is a prime.

It is a super-2 number, since 2×555871969² = 617987291839873922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (555871963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277935984 + 277935985.

It is an arithmetic number, because the mean of its divisors is an integer number (277935985).

Almost surely, 2^555871969 is an apocalyptic number.

It is an amenable number.

555871969 is a deficient number, since it is larger than the sum of its proper divisors (1).

555871969 is an equidigital number, since it uses as much as digits as its factorization.

555871969 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3402000, while the sum is 55.

The square root of 555871969 is about 23576.9372268749. The cubic root of 555871969 is about 822.2267303550.

The spelling of 555871969 in words is "five hundred fifty-five million, eight hundred seventy-one thousand, nine hundred sixty-nine".