557938369 has 4 divisors (see below), whose sum is σ = 565000960. Its totient is φ = 550875780.

The previous prime is 557938361. The next prime is 557938411. The reversal of 557938369 is 963839755.

It is a happy number.

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 not a de Polignac number, because 557938369 - 2³ = 557938361 is a prime.

It is a super-2 number, since 2×557938369² = 622590447204760322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557938361) 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, 3531177 + ... + 3531334.

It is an arithmetic number, because the mean of its divisors is an integer number (141250240).

Almost surely, 2^557938369 is an apocalyptic number.

It is an amenable number.

557938369 is a deficient number, since it is larger than the sum of its proper divisors (7062591).

557938369 is an equidigital number, since it uses as much as digits as its factorization.

557938369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7062590.

The product of its digits is 6123600, while the sum is 55.

The square root of 557938369 is about 23620.7190618745. The cubic root of 557938369 is about 823.2443197744.

The spelling of 557938369 in words is "five hundred fifty-seven million, nine hundred thirty-eight thousand, three hundred sixty-nine".