275550 has 48 divisors (see below), whose sum is σ = 749952. Its totient is φ = 66400.

The previous prime is 275549. The next prime is 275573. The reversal of 275550 is 55572.

It is a plaindrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 275550.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1567 + ... + 1733.

It is an arithmetic number, because the mean of its divisors is an integer number (15624).

2²⁷⁵⁵⁵⁰ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (374976).

275550 is an abundant number, since it is smaller than the sum of its proper divisors (474402).

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

275550 is a wasteful number, since it uses less digits than its factorization.

275550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 1750, while the sum is 24.

The square root of 275550 is about 524.9285665688. The cubic root of 275550 is about 65.0728965208.

The spelling of 275550 in words is "two hundred seventy-five thousand, five hundred fifty".