555650816 has 72 divisors (see below), whose sum is σ = 1297236864. Its totient is φ = 232565760.

The previous prime is 555650791. The next prime is 555650833. The reversal of 555650816 is 618056555.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 73451 + ... + 80661.

Almost surely, 2^555650816 is an apocalyptic number.

555650816 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555650816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (648618432).

555650816 is an abundant number, since it is smaller than the sum of its proper divisors (741586048).

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

555650816 is an equidigital number, since it uses as much as digits as its factorization.

555650816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7277 (or 7263 counting only the distinct ones).

The product of its (nonzero) digits is 180000, while the sum is 41.

The square root of 555650816 is about 23572.2467321212. The cubic root of 555650816 is about 822.1176752498.

The spelling of 555650816 in words is "five hundred fifty-five million, six hundred fifty thousand, eight hundred sixteen".