557961223 has 2 divisors, whose sum is σ = 557961224. Its totient is φ = 557961222.

The previous prime is 557961211. The next prime is 557961227. The reversal of 557961223 is 322169755.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 557961223 - 2⁵ = 557961191 is a prime.

It is a super-2 number, since 2×557961223² = 622641452743311458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557961227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278980611 + 278980612.

It is an arithmetic number, because the mean of its divisors is an integer number (278980612).

Almost surely, 2^557961223 is an apocalyptic number.

557961223 is a deficient number, since it is larger than the sum of its proper divisors (1).

557961223 is an equidigital number, since it uses as much as digits as its factorization.

557961223 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 40.

The square root of 557961223 is about 23621.2028271212. The cubic root of 557961223 is about 823.2555600654.

The spelling of 557961223 in words is "five hundred fifty-seven million, nine hundred sixty-one thousand, two hundred twenty-three".