555242291 has 2 divisors, whose sum is σ = 555242292. Its totient is φ = 555242290.

The previous prime is 555242269. The next prime is 555242293. The reversal of 555242291 is 192242555.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-555242291 is a prime.

Together with 555242293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (555242293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 277621145 + 277621146.

It is an arithmetic number, because the mean of its divisors is an integer number (277621146).

Almost surely, 2^555242291 is an apocalyptic number.

555242291 is a deficient number, since it is larger than the sum of its proper divisors (1).

555242291 is an equidigital number, since it uses as much as digits as its factorization.

555242291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36000, while the sum is 35.

The square root of 555242291 is about 23563.5797577533. The cubic root of 555242291 is about 821.9161470260.

The spelling of 555242291 in words is "five hundred fifty-five million, two hundred forty-two thousand, two hundred ninety-one".