275555513 has 2 divisors, whose sum is σ = 275555514. Its totient is φ = 275555512.

The previous prime is 275555491. The next prime is 275555551. The reversal of 275555513 is 315555572.

It is a happy number.

It is an a-pointer prime, because the next prime (275555551) can be obtained adding 275555513 to its sum of digits (38).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 175615504 + 99940009 = 13252^2 + 9997^2 .

It is a cyclic number.

It is not a de Polignac number, because 275555513 - 2⁸ = 275555257 is a prime.

It is not a weakly prime, because it can be changed into another prime (275555113) 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, 137777756 + 137777757.

It is an arithmetic number, because the mean of its divisors is an integer number (137777757).

Almost surely, 2^275555513 is an apocalyptic number.

It is an amenable number.

275555513 is a deficient number, since it is larger than the sum of its proper divisors (1).

275555513 is an equidigital number, since it uses as much as digits as its factorization.

275555513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 131250, while the sum is 38.

The square root of 275555513 is about 16599.8648488474. The cubic root of 275555513 is about 650.7333049469.

The spelling of 275555513 in words is "two hundred seventy-five million, five hundred fifty-five thousand, five hundred thirteen".