275982457 has 2 divisors, whose sum is σ = 275982458. Its totient is φ = 275982456.

The previous prime is 275982409. The next prime is 275982461. The reversal of 275982457 is 754289572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 269485056 + 6497401 = 16416^2 + 2549^2 .

It is a cyclic number.

It is not a de Polignac number, because 275982457 - 2¹⁵ = 275949689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275982457.

It is not a weakly prime, because it can be changed into another prime (275982257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137991228 + 137991229.

It is an arithmetic number, because the mean of its divisors is an integer number (137991229).

Almost surely, 2^275982457 is an apocalyptic number.

It is an amenable number.

275982457 is a deficient number, since it is larger than the sum of its proper divisors (1).

275982457 is an equidigital number, since it uses as much as digits as its factorization.

275982457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1411200, while the sum is 49.

The square root of 275982457 is about 16612.7197351909. The cubic root of 275982457 is about 651.0692122357.

The spelling of 275982457 in words is "two hundred seventy-five million, nine hundred eighty-two thousand, four hundred fifty-seven".