557481 has 12 divisors (see below), whose sum is σ = 790832. Its totient is φ = 349248.

The previous prime is 557461. The next prime is 557483. The reversal of 557481 is 184755.

It is not a de Polignac number, because 557481 - 2⁵ = 557449 is a prime.

It is a super-2 number, since 2×557481² = 621570130722, which contains 22 as substring.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 557481.

It is not an unprimeable number, because it can be changed into a prime (557483) 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 11 ways as a sum of consecutive naturals, for example, 546 + ... + 1188.

2⁵⁵⁷⁴⁸¹ is an apocalyptic number.

557481 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

It is an amenable number.

557481 is a deficient number, since it is larger than the sum of its proper divisors (233351).

557481 is a wasteful number, since it uses less digits than its factorization.

557481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680 (or 663 counting only the distinct ones).

The product of its digits is 5600, while the sum is 30.

The square root of 557481 is about 746.6465027039. The cubic root of 557481 is about 82.3019307249.

The spelling of 557481 in words is "five hundred fifty-seven thousand, four hundred eighty-one".