557256406 has 8 divisors (see below), whose sum is σ = 955296720. Its totient is φ = 238824168.

The previous prime is 557256389. The next prime is 557256433. The reversal of 557256406 is 604652755.

557256406 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19902001 + ... + 19902028.

It is an arithmetic number, because the mean of its divisors is an integer number (119412090).

Almost surely, 2^557256406 is an apocalyptic number.

557256406 is a deficient number, since it is larger than the sum of its proper divisors (398040314).

557256406 is a wasteful number, since it uses less digits than its factorization.

557256406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39804038.

The product of its (nonzero) digits is 252000, while the sum is 40.

The square root of 557256406 is about 23606.2789528549. The cubic root of 557256406 is about 822.9087683389.

The spelling of 557256406 in words is "five hundred fifty-seven million, two hundred fifty-six thousand, four hundred six".