275117385 has 16 divisors (see below), whose sum is σ = 452085696. Its totient is φ = 142763328.

The previous prime is 275117377. The next prime is 275117387. The reversal of 275117385 is 583711572.

It is not a de Polignac number, because 275117385 - 2³ = 275117377 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (275117387) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 247299 + ... + 248408.

It is an arithmetic number, because the mean of its divisors is an integer number (28255356).

Almost surely, 2^275117385 is an apocalyptic number.

It is an amenable number.

275117385 is a deficient number, since it is larger than the sum of its proper divisors (176968311).

275117385 is a wasteful number, since it uses less digits than its factorization.

275117385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495752.

The product of its digits is 58800, while the sum is 39.

The square root of 275117385 is about 16586.6628650853. The cubic root of 275117385 is about 650.3882374921.

The spelling of 275117385 in words is "two hundred seventy-five million, one hundred seventeen thousand, three hundred eighty-five".