558021643 has 2 divisors, whose sum is σ = 558021644. Its totient is φ = 558021642.

The previous prime is 558021641. The next prime is 558021677. The reversal of 558021643 is 346120855.

It is an a-pointer prime, because the next prime (558021677) can be obtained adding 558021643 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 558021643 - 2¹ = 558021641 is a prime.

It is a super-2 number, since 2×558021643² = 622776308112838898, which contains 22 as substring.

Together with 558021641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 558021599 and 558021608.

It is not a weakly prime, because it can be changed into another prime (558021641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 279010821 + 279010822.

It is an arithmetic number, because the mean of its divisors is an integer number (279010822).

Almost surely, 2^558021643 is an apocalyptic number.

558021643 is a deficient number, since it is larger than the sum of its proper divisors (1).

558021643 is an equidigital number, since it uses as much as digits as its factorization.

558021643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 558021643 is about 23622.4817282181. The cubic root of 558021643 is about 823.2852749772.

The spelling of 558021643 in words is "five hundred fifty-eight million, twenty-one thousand, six hundred forty-three".