555382656 has 320 divisors, whose sum is σ = 1839451680. Its totient is φ = 165445632.

The previous prime is 555382649. The next prime is 555382657. The reversal of 555382656 is 656283555.

555382656 is a `hidden beast` number, since 55 + 538 + 2 + 65 + 6 = 666.

It is a super-2 number, since 2×555382656² = 616899789171228672, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (555382657) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 4053820 + ... + 4053956.

Almost surely, 2^555382656 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 555382656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (919725840).

555382656 is an abundant number, since it is smaller than the sum of its proper divisors (1284069024).

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

555382656 is a wasteful number, since it uses less digits than its factorization.

555382656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203 (or 182 counting only the distinct ones).

The product of its digits is 1080000, while the sum is 45.

The square root of 555382656 is about 23566.5580006924. The cubic root of 555382656 is about 821.9854012006.

It can be divided in two parts, 5553 and 82656, that added together give a square (88209 = 297²).

The spelling of 555382656 in words is "five hundred fifty-five million, three hundred eighty-two thousand, six hundred fifty-six".