555257 has 2 divisors, whose sum is σ = 555258. Its totient is φ = 555256.

The previous prime is 555253. The next prime is 555277. The reversal of 555257 is 752555.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 436921 + 118336 = 661^2 + 344^2 .

It is a cyclic number.

It is not a de Polignac number, because 555257 - 2² = 555253 is a prime.

It is not a weakly prime, because it can be changed into another prime (555251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277628 + 277629.

It is an arithmetic number, because the mean of its divisors is an integer number (277629).

2⁵⁵⁵²⁵⁷ is an apocalyptic number.

It is an amenable number.

555257 is a deficient number, since it is larger than the sum of its proper divisors (1).

555257 is an equidigital number, since it uses as much as digits as its factorization.

555257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8750, while the sum is 29.

The square root of 555257 is about 745.1556884303. The cubic root of 555257 is about 82.1923404793.

The spelling of 555257 in words is "five hundred fifty-five thousand, two hundred fifty-seven".