275791225 has 12 divisors (see below), whose sum is σ = 342327916. Its totient is φ = 220409280.

The previous prime is 275791211. The next prime is 275791249. The reversal of 275791225 is 522197572.

It can be written as a sum of positive squares in 6 ways, for example, as 10361961 + 265429264 = 3219^2 + 16292^2 .

It is not a de Polignac number, because 275791225 - 2¹¹ = 275789177 is a prime.

It is a super-3 number, since 3×275791225³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

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, 22279 + ... + 32371.

Almost surely, 2^275791225 is an apocalyptic number.

275791225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275791225 is a deficient number, since it is larger than the sum of its proper divisors (66536691).

275791225 is a wasteful number, since it uses less digits than its factorization.

275791225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11196 (or 11191 counting only the distinct ones).

The product of its digits is 88200, while the sum is 40.

The square root of 275791225 is about 16606.9631480292. The cubic root of 275791225 is about 650.9187992504.

The spelling of 275791225 in words is "two hundred seventy-five million, seven hundred ninety-one thousand, two hundred twenty-five".