2575272665 has 12 divisors (see below), whose sum is σ = 3594870756. Its totient is φ = 1765901088.

The previous prime is 2575272647. The next prime is 2575272677. The reversal of 2575272665 is 5662725752.

It can be written as a sum of positive squares in 2 ways, for example, as 611276176 + 1963996489 = 24724^2 + 44317^2 .

It is not a de Polignac number, because 2575272665 - 2¹⁸ = 2575010521 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 5255414 + ... + 5255903.

It is an arithmetic number, because the mean of its divisors is an integer number (299572563).

Almost surely, 2^2575272665 is an apocalyptic number.

It is an amenable number.

2575272665 is a deficient number, since it is larger than the sum of its proper divisors (1019598091).

2575272665 is a wasteful number, since it uses less digits than its factorization.

2575272665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10511336 (or 10511329 counting only the distinct ones).

The product of its digits is 1764000, while the sum is 47.

The square root of 2575272665 is about 50747.1444024193. The cubic root of 2575272665 is about 1370.6957705127.

The spelling of 2575272665 in words is "two billion, five hundred seventy-five million, two hundred seventy-two thousand, six hundred sixty-five".