557161399 has 4 divisors (see below), whose sum is σ = 558758200. Its totient is φ = 555564600.

The previous prime is 557161391. The next prime is 557161403. The reversal of 557161399 is 993161755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 557161399 - 2³ = 557161391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557161391) 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 3 ways as a sum of consecutive naturals, for example, 797877 + ... + 798574.

It is an arithmetic number, because the mean of its divisors is an integer number (139689550).

Almost surely, 2^557161399 is an apocalyptic number.

557161399 is a deficient number, since it is larger than the sum of its proper divisors (1596801).

557161399 is a wasteful number, since it uses less digits than its factorization.

557161399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1596800.

The product of its digits is 255150, while the sum is 46.

The square root of 557161399 is about 23604.2665423012. The cubic root of 557161399 is about 822.8619996007.

The spelling of 557161399 in words is "five hundred fifty-seven million, one hundred sixty-one thousand, three hundred ninety-nine".