275837985 has 24 divisors (see below), whose sum is σ = 479866920. Its totient is φ = 146575872.

The previous prime is 275837983. The next prime is 275837999. The reversal of 275837985 is 589738572.

It can be written as a sum of positive squares in 4 ways, for example, as 48944016 + 226893969 = 6996^2 + 15063^2 .

It is not a de Polignac number, because 275837985 - 2¹ = 275837983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (275837983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1401 + ... + 23529.

It is an arithmetic number, because the mean of its divisors is an integer number (19994455).

Almost surely, 2^275837985 is an apocalyptic number.

It is an amenable number.

275837985 is a deficient number, since it is larger than the sum of its proper divisors (204028935).

275837985 is a wasteful number, since it uses less digits than its factorization.

275837985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22417 (or 22414 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 275837985 is about 16608.3709315514. The cubic root of 275837985 is about 650.9555846159.

The spelling of 275837985 in words is "two hundred seventy-five million, eight hundred thirty-seven thousand, nine hundred eighty-five".