275305030305 has 16 divisors (see below), whose sum is σ = 446522133120. Its totient is φ = 144817987968.

The previous prime is 275305030267. The next prime is 275305030309. The reversal of 275305030305 is 503030503572.

It is not a de Polignac number, because 275305030305 - 2¹⁸ = 275304768161 is a prime.

It is a super-2 number, since 2×275305030305² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (275305030309) 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, 125708965 + ... + 125711154.

It is an arithmetic number, because the mean of its divisors is an integer number (27907633320).

Almost surely, 2^275305030305 is an apocalyptic number.

It is an amenable number.

275305030305 is a deficient number, since it is larger than the sum of its proper divisors (171217102815).

275305030305 is a wasteful number, since it uses less digits than its factorization.

275305030305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251420200.

The product of its (nonzero) digits is 47250, while the sum is 33.

Adding to 275305030305 its reverse (503030503572), we get a palindrome (778335533877).

The spelling of 275305030305 in words is "two hundred seventy-five billion, three hundred five million, thirty thousand, three hundred five".