275530025 has 12 divisors (see below), whose sum is σ = 349604112. Its totient is φ = 215297040.

The previous prime is 275529997. The next prime is 275530049. The reversal of 275530025 is 520035572.

It is a de Polignac number, because none of the positive numbers 2^k-275530025 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 275530025.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127079 + ... + 129228.

It is an arithmetic number, because the mean of its divisors is an integer number (29133676).

Almost surely, 2^275530025 is an apocalyptic number.

275530025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275530025 is a deficient number, since it is larger than the sum of its proper divisors (74074087).

275530025 is a wasteful number, since it uses less digits than its factorization.

275530025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256360 (or 256355 counting only the distinct ones).

The product of its (nonzero) digits is 10500, while the sum is 29.

The square root of 275530025 is about 16599.0971139999. The cubic root of 275530025 is about 650.7132407480.

Adding to 275530025 its reverse (520035572), we get a palindrome (795565597).

The spelling of 275530025 in words is "two hundred seventy-five million, five hundred thirty thousand, twenty-five".