551056164 has 24 divisors (see below), whose sum is σ = 1353471840. Its totient is φ = 174017664.

The previous prime is 551056159. The next prime is 551056237. The reversal of 551056164 is 461650155.

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, 1208229 + ... + 1208684.

It is an arithmetic number, because the mean of its divisors is an integer number (56394660).

Almost surely, 2^551056164 is an apocalyptic number.

It is an amenable number.

551056164 is an abundant number, since it is smaller than the sum of its proper divisors (802415676).

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

551056164 is a wasteful number, since it uses less digits than its factorization.

551056164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2416939 (or 2416937 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 33.

The square root of 551056164 is about 23474.5854915481. The cubic root of 551056164 is about 819.8453823088.

The spelling of 551056164 in words is "five hundred fifty-one million, fifty-six thousand, one hundred sixty-four".