557289193 has 4 divisors (see below), whose sum is σ = 557977168. Its totient is φ = 556601220.

The previous prime is 557289181. The next prime is 557289203. The reversal of 557289193 is 391982755.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557289193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557089193) 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, 342771 + ... + 344392.

It is an arithmetic number, because the mean of its divisors is an integer number (139494292).

Almost surely, 2^557289193 is an apocalyptic number.

It is an amenable number.

557289193 is a deficient number, since it is larger than the sum of its proper divisors (687975).

557289193 is an equidigital number, since it uses as much as digits as its factorization.

557289193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 687974.

The product of its digits is 680400, while the sum is 49.

The square root of 557289193 is about 23606.9733977060. The cubic root of 557289193 is about 822.9249070382.

The spelling of 557289193 in words is "five hundred fifty-seven million, two hundred eighty-nine thousand, one hundred ninety-three".