557241 has 4 divisors (see below), whose sum is σ = 742992. Its totient is φ = 371492.

The previous prime is 557201. The next prime is 557261. The reversal of 557241 is 142755.

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-557241 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (557201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92871 + ... + 92876.

It is an arithmetic number, because the mean of its divisors is an integer number (185748).

2⁵⁵⁷²⁴¹ is an apocalyptic number.

It is an amenable number.

557241 is a deficient number, since it is larger than the sum of its proper divisors (185751).

557241 is a wasteful number, since it uses less digits than its factorization.

557241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185750.

The product of its digits is 1400, while the sum is 24.

The square root of 557241 is about 746.4857667766. The cubic root of 557241 is about 82.2901184846.

Adding to 557241 its reverse (142755), we get a palindrome (699996).

The spelling of 557241 in words is "five hundred fifty-seven thousand, two hundred forty-one".