12645552 has 40 divisors (see below), whose sum is σ = 34591536. Its totient is φ = 3966976.

The previous prime is 12645547. The next prime is 12645623. The reversal of 12645552 is 25554621.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6933 + ... + 8564.

Almost surely, 2^12645552 is an apocalyptic number.

12645552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12645552 is an abundant number, since it is smaller than the sum of its proper divisors (21945984).

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

12645552 is a wasteful number, since it uses less digits than its factorization.

12645552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15525 (or 15519 counting only the distinct ones).

The product of its digits is 12000, while the sum is 30.

The square root of 12645552 is about 3556.0584922073. The cubic root of 12645552 is about 232.9767578602.

The spelling of 12645552 in words is "twelve million, six hundred forty-five thousand, five hundred fifty-two".