558242831 has 2 divisors, whose sum is σ = 558242832. Its totient is φ = 558242830.

The previous prime is 558242827. The next prime is 558242863. The reversal of 558242831 is 138242855.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 558242831 - 2² = 558242827 is a prime.

It is a super-2 number, since 2×558242831² = 623270116725789122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (558242891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279121415 + 279121416.

It is an arithmetic number, because the mean of its divisors is an integer number (279121416).

Almost surely, 2^558242831 is an apocalyptic number.

558242831 is a deficient number, since it is larger than the sum of its proper divisors (1).

558242831 is an equidigital number, since it uses as much as digits as its factorization.

558242831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 76800, while the sum is 38.

The square root of 558242831 is about 23627.1629909306. The cubic root of 558242831 is about 823.3940382427.

The spelling of 558242831 in words is "five hundred fifty-eight million, two hundred forty-two thousand, eight hundred thirty-one".