275001225 has 24 divisors (see below), whose sum is σ = 474439872. Its totient is φ = 140289600.

The previous prime is 275001203. The next prime is 275001241. The reversal of 275001225 is 522100572.

It is not a de Polignac number, because 275001225 - 2¹⁴ = 274984841 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 275001195 and 275001204.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77986 + ... + 81435.

It is an arithmetic number, because the mean of its divisors is an integer number (19768328).

Almost surely, 2^275001225 is an apocalyptic number.

275001225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275001225 is a deficient number, since it is larger than the sum of its proper divisors (199438647).

275001225 is a wasteful number, since it uses less digits than its factorization.

275001225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159457 (or 159452 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 275001225 is about 16583.1608868756. The cubic root of 275001225 is about 650.2966890149.

Adding to 275001225 its reverse (522100572), we get a palindrome (797101797).

The spelling of 275001225 in words is "two hundred seventy-five million, one thousand, two hundred twenty-five".