276742225 has 12 divisors (see below), whose sum is σ = 343378444. Its totient is φ = 221253120.

The previous prime is 276742223. The next prime is 276742229. The reversal of 276742225 is 522247672.

It can be written as a sum of positive squares in 6 ways, for example, as 43996689 + 232745536 = 6633^2 + 15256^2 .

It is not a de Polignac number, because 276742225 - 2¹ = 276742223 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (276742223) 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, 57097 + ... + 61753.

Almost surely, 2^276742225 is an apocalyptic number.

276742225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

276742225 is a deficient number, since it is larger than the sum of its proper divisors (66636219).

276742225 is a wasteful number, since it uses less digits than its factorization.

276742225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7044 (or 7039 counting only the distinct ones).

The product of its digits is 94080, while the sum is 37.

The square root of 276742225 is about 16635.5710752592. The cubic root of 276742225 is about 651.6661201264. Note that the first 3 decimals are identical.

Adding to 276742225 its reverse (522247672), we get a palindrome (798989897).

The spelling of 276742225 in words is "two hundred seventy-six million, seven hundred forty-two thousand, two hundred twenty-five".