275777225 has 12 divisors (see below), whose sum is σ = 342235536. Its totient is φ = 220446480.

The previous prime is 275777221. The next prime is 275777231. The reversal of 275777225 is 522777572.

It is not a de Polignac number, because 275777225 - 2² = 275777221 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (275777221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34454 + ... + 41696.

It is an arithmetic number, because the mean of its divisors is an integer number (28519628).

Almost surely, 2^275777225 is an apocalyptic number.

275777225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

275777225 is a deficient number, since it is larger than the sum of its proper divisors (66458311).

275777225 is a wasteful number, since it uses less digits than its factorization.

275777225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8776 (or 8771 counting only the distinct ones).

The product of its digits is 480200, while the sum is 44.

The square root of 275777225 is about 16606.5416327422. The cubic root of 275777225 is about 650.9077848591.

The spelling of 275777225 in words is "two hundred seventy-five million, seven hundred seventy-seven thousand, two hundred twenty-five".