557554656 has 96 divisors (see below), whose sum is σ = 1493856000. Its totient is φ = 182052864.

The previous prime is 557554649. The next prime is 557554687. The reversal of 557554656 is 656455755.

It is a happy number.

557554656 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (48).

Its product of digits (3150000) is a multiple of the sum of its prime divisors (720).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1117095 + ... + 1117593.

It is an arithmetic number, because the mean of its divisors is an integer number (15561000).

Almost surely, 2^557554656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 557554656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746928000).

557554656 is an abundant number, since it is smaller than the sum of its proper divisors (936301344).

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

557554656 is a wasteful number, since it uses less digits than its factorization.

557554656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728 (or 720 counting only the distinct ones).

The product of its digits is 3150000, while the sum is 48.

The square root of 557554656 is about 23612.5952830264. The cubic root of 557554656 is about 823.0555522158.

The spelling of 557554656 in words is "five hundred fifty-seven million, five hundred fifty-four thousand, six hundred fifty-six".