12775552 has 16 divisors (see below), whose sum is σ = 25451550. Its totient is φ = 6387712.

The previous prime is 12775549. The next prime is 12775577. The reversal of 12775552 is 25557721.

It can be written as a sum of positive squares in only one way, i.e., 12222016 + 553536 = 3496^2 + 744^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49777 + ... + 50032.

Almost surely, 2^12775552 is an apocalyptic number.

It is an amenable number.

12775552 is a deficient number, since it is larger than the sum of its proper divisors (12675998).

12775552 is an frugal number, since it uses more digits than its factorization.

12775552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99823 (or 99811 counting only the distinct ones).

The product of its digits is 24500, while the sum is 34.

The square root of 12775552 is about 3574.2904190902. The cubic root of 12775552 is about 233.7723941674.

The spelling of 12775552 in words is "twelve million, seven hundred seventy-five thousand, five hundred fifty-two".