557112217 has 4 divisors (see below), whose sum is σ = 557162496. Its totient is φ = 557061940.

The previous prime is 557112173. The next prime is 557112277. The reversal of 557112217 is 712211755.

557112217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557112217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557112277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409 + ... + 33382.

It is an arithmetic number, because the mean of its divisors is an integer number (139290624).

Almost surely, 2^557112217 is an apocalyptic number.

It is an amenable number.

557112217 is a deficient number, since it is larger than the sum of its proper divisors (50279).

557112217 is a wasteful number, since it uses less digits than its factorization.

557112217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50278.

The product of its digits is 4900, while the sum is 31.

The square root of 557112217 is about 23603.2247161272. The cubic root of 557112217 is about 822.8377868742.

The spelling of 557112217 in words is "five hundred fifty-seven million, one hundred twelve thousand, two hundred seventeen".