555602081 has 2 divisors, whose sum is σ = 555602082. Its totient is φ = 555602080.

The previous prime is 555602063. The next prime is 555602107. The reversal of 555602081 is 180206555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 520980625 + 34621456 = 22825^2 + 5884^2 .

It is a cyclic number.

It is not a de Polignac number, because 555602081 - 2⁶ = 555602017 is a prime.

It is a super-2 number, since 2×555602081² = 617387344823061122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (555002081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277801040 + 277801041.

It is an arithmetic number, because the mean of its divisors is an integer number (277801041).

Almost surely, 2^555602081 is an apocalyptic number.

It is an amenable number.

555602081 is a deficient number, since it is larger than the sum of its proper divisors (1).

555602081 is an equidigital number, since it uses as much as digits as its factorization.

555602081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 555602081 is about 23571.2129726071. The cubic root of 555602081 is about 822.0936391255.

The spelling of 555602081 in words is "five hundred fifty-five million, six hundred two thousand, eighty-one".