12564275 has 36 divisors (see below), whose sum is σ = 17359008. Its totient is φ = 9008640.

The previous prime is 12564259. The next prime is 12564281. The reversal of 12564275 is 57246521.

12564275 = T₃₃₂ + T₃₃₃ + ... + T₄₈₁.

It is not a de Polignac number, because 12564275 - 2⁴ = 12564259 is a prime.

It is a super-2 number, since 2×12564275² = 315722012551250, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 267302 + ... + 267348.

Almost surely, 2^12564275 is an apocalyptic number.

12564275 is a deficient number, since it is larger than the sum of its proper divisors (4794733).

12564275 is a wasteful number, since it uses less digits than its factorization.

12564275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 106 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 12564275 is about 3544.6121085388. The cubic root of 12564275 is about 232.4765459827.

The spelling of 12564275 in words is "twelve million, five hundred sixty-four thousand, two hundred seventy-five".