275505738397 has 2 divisors, whose sum is σ = 275505738398. Its totient is φ = 275505738396.

The previous prime is 275505738359. The next prime is 275505738401. The reversal of 275505738397 is 793837505572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 275353117081 + 152621316 = 524741^2 + 12354^2 .

It is a cyclic number.

It is not a de Polignac number, because 275505738397 - 2¹⁹ = 275505214109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (275505738097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 137752869198 + 137752869199.

It is an arithmetic number, because the mean of its divisors is an integer number (137752869199).

Almost surely, 2^275505738397 is an apocalyptic number.

It is an amenable number.

275505738397 is a deficient number, since it is larger than the sum of its proper divisors (1).

275505738397 is an equidigital number, since it uses as much as digits as its factorization.

275505738397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55566000, while the sum is 61.

The spelling of 275505738397 in words is "two hundred seventy-five billion, five hundred five million, seven hundred thirty-eight thousand, three hundred ninety-seven".