557558423 has 2 divisors, whose sum is σ = 557558424. Its totient is φ = 557558422.

The previous prime is 557558411. The next prime is 557558429. The reversal of 557558423 is 324855755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557558423 - 2⁶ = 557558359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557558429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278779211 + 278779212.

It is an arithmetic number, because the mean of its divisors is an integer number (278779212).

Almost surely, 2^557558423 is an apocalyptic number.

557558423 is a deficient number, since it is larger than the sum of its proper divisors (1).

557558423 is an equidigital number, since it uses as much as digits as its factorization.

557558423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 840000, while the sum is 44.

The square root of 557558423 is about 23612.6750496423. The cubic root of 557558423 is about 823.0574058118.

The spelling of 557558423 in words is "five hundred fifty-seven million, five hundred fifty-eight thousand, four hundred twenty-three".