275257250 has 32 divisors (see below), whose sum is σ = 518244480. Its totient is φ = 109470000.

The previous prime is 275257247. The next prime is 275257289. The reversal of 275257250 is 52752572.

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 275257250.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41675 + ... + 47825.

It is an arithmetic number, because the mean of its divisors is an integer number (16195140).

Almost surely, 2^275257250 is an apocalyptic number.

275257250 is a deficient number, since it is larger than the sum of its proper divisors (242987230).

275257250 is a wasteful number, since it uses less digits than its factorization.

275257250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347 (or 6337 counting only the distinct ones).

The product of its (nonzero) digits is 49000, while the sum is 35.

The square root of 275257250 is about 16590.8785180291. The cubic root of 275257250 is about 650.4984342600.

The spelling of 275257250 in words is "two hundred seventy-five million, two hundred fifty-seven thousand, two hundred fifty".