275565013 has 2 divisors, whose sum is σ = 275565014. Its totient is φ = 275565012.

The previous prime is 275565007. The next prime is 275565041. The reversal of 275565013 is 310565572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 155925169 + 119639844 = 12487^2 + 10938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-275565013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 275565013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275565083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137782506 + 137782507.

It is an arithmetic number, because the mean of its divisors is an integer number (137782507).

Almost surely, 2^275565013 is an apocalyptic number.

It is an amenable number.

275565013 is a deficient number, since it is larger than the sum of its proper divisors (1).

275565013 is an equidigital number, since it uses as much as digits as its factorization.

275565013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 275565013 is about 16600.1509932892. The cubic root of 275565013 is about 650.7407830473.

The spelling of 275565013 in words is "two hundred seventy-five million, five hundred sixty-five thousand, thirteen".