551555160 has 96 divisors (see below), whose sum is σ = 1791804240. Its totient is φ = 135762432.

The previous prime is 551555159. The next prime is 551555167. The reversal of 551555160 is 61555155.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (551555167) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6682 + ... + 33878.

Almost surely, 2^551555160 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 551555160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (895902120).

551555160 is an abundant number, since it is smaller than the sum of its proper divisors (1240249080).

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

551555160 is a wasteful number, since it uses less digits than its factorization.

551555160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27237 (or 27220 counting only the distinct ones).

The product of its (nonzero) digits is 18750, while the sum is 33.

The square root of 551555160 is about 23485.2115170377. The cubic root of 551555160 is about 820.0927715780.

The spelling of 551555160 in words is "five hundred fifty-one million, five hundred fifty-five thousand, one hundred sixty".