275563000 has 64 divisors (see below), whose sum is σ = 672909120. Its totient is φ = 105424000.

The previous prime is 275562983. The next prime is 275563037. The reversal of 275563000 is 365572.

It is a self number, because there is not a number n which added to its sum of digits gives 275563000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17010 + ... + 28990.

It is an arithmetic number, because the mean of its divisors is an integer number (10514205).

Almost surely, 2^275563000 is an apocalyptic number.

275563000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 275563000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (336454560).

275563000 is an abundant number, since it is smaller than the sum of its proper divisors (397346120).

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

275563000 is a wasteful number, since it uses less digits than its factorization.

275563000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12025 (or 12011 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 275563000 is about 16600.0903611998. The cubic root of 275563000 is about 650.7391984915.

The spelling of 275563000 in words is "two hundred seventy-five million, five hundred sixty-three thousand".