12575656 has 8 divisors (see below), whose sum is σ = 23579370. Its totient is φ = 6287824.

The previous prime is 12575653. The next prime is 12575659. The reversal of 12575656 is 65657521.

It is an interprime number because it is at equal distance from previous prime (12575653) and next prime (12575659).

It can be written as a sum of positive squares in only one way, i.e., 12013156 + 562500 = 3466^2 + 750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (12575653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 785971 + ... + 785986.

Almost surely, 2^12575656 is an apocalyptic number.

It is an amenable number.

12575656 is a deficient number, since it is larger than the sum of its proper divisors (11003714).

12575656 is a wasteful number, since it uses less digits than its factorization.

12575656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571963 (or 1571959 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 12575656 is about 3546.2171394318. The cubic root of 12575656 is about 232.5467189424.

It can be divided in two parts, 12575 and 656, that added together give a palindrome (13231).

The spelling of 12575656 in words is "twelve million, five hundred seventy-five thousand, six hundred fifty-six".