275252279 has 2 divisors, whose sum is σ = 275252280. Its totient is φ = 275252278.

The previous prime is 275252203. The next prime is 275252443. The reversal of 275252279 is 972252572.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 275252279 - 2²⁰ = 274203703 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275212279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137626139 + 137626140.

It is an arithmetic number, because the mean of its divisors is an integer number (137626140).

Almost surely, 2^275252279 is an apocalyptic number.

275252279 is a deficient number, since it is larger than the sum of its proper divisors (1).

275252279 is an equidigital number, since it uses as much as digits as its factorization.

275252279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 176400, while the sum is 41.

The square root of 275252279 is about 16590.7287061178. The cubic root of 275252279 is about 650.4945183508.

The spelling of 275252279 in words is "two hundred seventy-five million, two hundred fifty-two thousand, two hundred seventy-nine".