557448 has 16 divisors (see below), whose sum is σ = 1393680. Its totient is φ = 185808.

The previous prime is 557443. The next prime is 557449. The reversal of 557448 is 844755.

557448 is nontrivially palindromic in base 16.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (557443) by changing a digit.

557448 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11590 + ... + 11637.

It is an arithmetic number, because the mean of its divisors is an integer number (87105).

2⁵⁵⁷⁴⁴⁸ is an apocalyptic number.

It is an amenable number.

557448 is an abundant number, since it is smaller than the sum of its proper divisors (836232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

557448 is a wasteful number, since it uses less digits than its factorization.

557448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23236 (or 23232 counting only the distinct ones).

The product of its digits is 22400, while the sum is 33.

The square root of 557448 is about 746.6244035658. The cubic root of 557448 is about 82.3003067429.

It can be divided in two parts, 55 and 7448, that added together give a triangular number (7503 = T₁₂₂).

The spelling of 557448 in words is "five hundred fifty-seven thousand, four hundred forty-eight".