555500656 has 40 divisors (see below), whose sum is σ = 1114821504. Its totient is φ = 267866880.

The previous prime is 555500641. The next prime is 555500681. The reversal of 555500656 is 656005555.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155466 + ... + 158998.

Almost surely, 2^555500656 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 555500656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (557410752).

555500656 is an abundant number, since it is smaller than the sum of its proper divisors (559320848).

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

555500656 is a wasteful number, since it uses less digits than its factorization.

555500656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3889 (or 3883 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 37.

The square root of 555500656 is about 23569.0614153385. The cubic root of 555500656 is about 822.0436117621.

The spelling of 555500656 in words is "five hundred fifty-five million, five hundred thousand, six hundred fifty-six".