557271231 has 8 divisors (see below), whose sum is σ = 810576384. Its totient is φ = 337740120.

The previous prime is 557271229. The next prime is 557271241. The reversal of 557271231 is 132172755.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 557271231 - 2¹ = 557271229 is a prime.

It is a super-2 number, since 2×557271231² = 621102449800510722, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33), and also a Moran number because the ratio is a prime number: 16887007 = 557271231 / (5 + 5 + 7 + 2 + 7 + 1 + 2 + 3 + 1).

It is a junction number, because it is equal to n+sod(n) for n = 557271192 and 557271201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557271241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8443471 + ... + 8443536.

It is an arithmetic number, because the mean of its divisors is an integer number (101322048).

Almost surely, 2^557271231 is an apocalyptic number.

557271231 is a deficient number, since it is larger than the sum of its proper divisors (253305153).

557271231 is a wasteful number, since it uses less digits than its factorization.

557271231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16887021.

The product of its digits is 14700, while the sum is 33.

The square root of 557271231 is about 23606.5929562061. The cubic root of 557271231 is about 822.9160657064.

The spelling of 557271231 in words is "five hundred fifty-seven million, two hundred seventy-one thousand, two hundred thirty-one".