550556160 has 640 divisors, whose sum is σ = 2356992000. Its totient is φ = 108380160.

The previous prime is 550556143. The next prime is 550556177. The reversal of 550556160 is 61655055.

It is an interprime number because it is at equal distance from previous prime (550556143) and next prime (550556177).

It is a tau number, because it is divible by the number of its divisors (640).

It is a super-2 number, since 2×550556160² = 606224170627891200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28976631 + ... + 28976649.

It is an arithmetic number, because the mean of its divisors is an integer number (3682800).

Almost surely, 2^550556160 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 550556160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1178496000).

550556160 is an abundant number, since it is smaller than the sum of its proper divisors (1806435840).

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

550556160 is a wasteful number, since it uses less digits than its factorization.

550556160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 33.

The square root of 550556160 is about 23463.9331741292. The cubic root of 550556160 is about 819.5973434562.

The spelling of 550556160 in words is "five hundred fifty million, five hundred fifty-six thousand, one hundred sixty".