275530000 has 100 divisors (see below), whose sum is σ = 679844880. Its totient is φ = 108112000.

The previous prime is 275529997. The next prime is 275530049. The reversal of 275530000 is 35572.

It is a tau number, because it is divible by the number of its divisors (100).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 589767 + ... + 590233.

Almost surely, 2^275530000 is an apocalyptic number.

275530000 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 275530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (339922440).

275530000 is an abundant number, since it is smaller than the sum of its proper divisors (404314880).

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

275530000 is an equidigital number, since it uses as much as digits as its factorization.

275530000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 554 (or 533 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 22.

The square root of 275530000 is about 16599.0963609469. The cubic root of 275530000 is about 650.7132210673.

Adding to 275530000 its reverse (35572), we get a palindrome (275565572).

The spelling of 275530000 in words is "two hundred seventy-five million, five hundred thirty thousand".