555130217 has 2 divisors, whose sum is σ = 555130218. Its totient is φ = 555130216.

The previous prime is 555130187. The next prime is 555130229. The reversal of 555130217 is 712031555.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485056576 + 70073641 = 22024^2 + 8371^2 .

It is a cyclic number.

It is not a de Polignac number, because 555130217 - 2⁶ = 555130153 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 555130217.

It is not a weakly prime, because it can be changed into another prime (555130297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277565108 + 277565109.

It is an arithmetic number, because the mean of its divisors is an integer number (277565109).

Almost surely, 2^555130217 is an apocalyptic number.

It is an amenable number.

555130217 is a deficient number, since it is larger than the sum of its proper divisors (1).

555130217 is an equidigital number, since it uses as much as digits as its factorization.

555130217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5250, while the sum is 29.

The square root of 555130217 is about 23561.2015185983. The cubic root of 555130217 is about 821.8608428641.

The spelling of 555130217 in words is "five hundred fifty-five million, one hundred thirty thousand, two hundred seventeen".