557493111 has 20 divisors (see below), whose sum is σ = 951770512. Its totient is φ = 318567168.

The previous prime is 557493109. The next prime is 557493137. The reversal of 557493111 is 111394755.

It is a happy number.

557493111 is a `hidden beast` number, since 5 + 57 + 493 + 111 = 666.

It is not a de Polignac number, because 557493111 - 2¹ = 557493109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557493311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 491050 + ... + 492183.

Almost surely, 2^557493111 is an apocalyptic number.

557493111 is a deficient number, since it is larger than the sum of its proper divisors (394277401).

557493111 is an equidigital number, since it uses as much as digits as its factorization.

557493111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983252 (or 983243 counting only the distinct ones).

The product of its digits is 18900, while the sum is 36.

The square root of 557493111 is about 23611.2920230978. The cubic root of 557493111 is about 823.0252671025.

The spelling of 557493111 in words is "five hundred fifty-seven million, four hundred ninety-three thousand, one hundred eleven".