275085900 has 216 divisors, whose sum is σ = 901817280. Its totient is φ = 70087680.

The previous prime is 275085869. The next prime is 275085901. The reversal of 275085900 is 9580572.

275085900 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (275085901) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 3482061 + ... + 3482139.

It is an arithmetic number, because the mean of its divisors is an integer number (4175080).

Almost surely, 2^275085900 is an apocalyptic number.

275085900 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 275085900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (450908640).

275085900 is an abundant number, since it is smaller than the sum of its proper divisors (626731380).

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

275085900 is a wasteful number, since it uses less digits than its factorization.

275085900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 215 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 275085900 is about 16585.7137320044. The cubic root of 275085900 is about 650.3634259559.

The spelling of 275085900 in words is "two hundred seventy-five million, eighty-five thousand, nine hundred".