12287552 has 28 divisors (see below), whose sum is σ = 25046940. Its totient is φ = 5976576.

The previous prime is 12287537. The next prime is 12287567. The reversal of 12287552 is 25578221.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (12287537) and next prime (12287567).

It can be written as a sum of positive squares in 2 ways, for example, as 10394176 + 1893376 = 3224^2 + 1376^2 .

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227 + ... + 4962.

Almost surely, 2^12287552 is an apocalyptic number.

It is an amenable number.

12287552 is an abundant number, since it is smaller than the sum of its proper divisors (12759388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12287552 is an equidigital number, since it uses as much as digits as its factorization.

12287552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5238 (or 5228 counting only the distinct ones).

The product of its digits is 11200, while the sum is 32.

The square root of 12287552 is about 3505.3604664856. The cubic root of 12287552 is about 230.7571268409.

The spelling of 12287552 in words is "twelve million, two hundred eighty-seven thousand, five hundred fifty-two".