556457 has 4 divisors (see below), whose sum is σ = 607056. Its totient is φ = 505860.

The previous prime is 556441. The next prime is 556459. The reversal of 556457 is 754655.

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 556457 - 2⁴ = 556441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (556459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25283 + ... + 25304.

It is an arithmetic number, because the mean of its divisors is an integer number (151764).

2⁵⁵⁶⁴⁵⁷ is an apocalyptic number.

It is an amenable number.

556457 is a deficient number, since it is larger than the sum of its proper divisors (50599).

556457 is a wasteful number, since it uses less digits than its factorization.

556457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50598.

The product of its digits is 21000, while the sum is 32.

The square root of 556457 is about 745.9604547159. The cubic root of 556457 is about 82.2515081809.

The spelling of 556457 in words is "five hundred fifty-six thousand, four hundred fifty-seven".