550331656 has 32 divisors (see below), whose sum is σ = 1241352000. Its totient is φ = 223442496.

The previous prime is 550331653. The next prime is 550331669. The reversal of 550331656 is 656133055.

It is not an unprimeable number, because it can be changed into a prime (550331651) by changing a digit.

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, 257551 + ... + 259678.

It is an arithmetic number, because the mean of its divisors is an integer number (38792250).

Almost surely, 2^550331656 is an apocalyptic number.

550331656 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

550331656 is an abundant number, since it is smaller than the sum of its proper divisors (691020344).

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

550331656 is a wasteful number, since it uses less digits than its factorization.

550331656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517261 (or 517257 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 34.

The square root of 550331656 is about 23459.1486631549. The cubic root of 550331656 is about 819.4859240639.

The spelling of 550331656 in words is "five hundred fifty million, three hundred thirty-one thousand, six hundred fifty-six".