12553466 has 4 divisors (see below), whose sum is σ = 18830202. Its totient is φ = 6276732.

The previous prime is 12553459. The next prime is 12553477. The reversal of 12553466 is 66435521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12397441 + 156025 = 3521^2 + 395^2 .

It is a super-2 number, since 2×12553466² = 315179017226312, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3138365 + ... + 3138368.

Almost surely, 2^12553466 is an apocalyptic number.

12553466 is a deficient number, since it is larger than the sum of its proper divisors (6276736).

12553466 is an equidigital number, since it uses as much as digits as its factorization.

12553466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6276735.

The product of its digits is 21600, while the sum is 32.

The square root of 12553466 is about 3543.0870720320. The cubic root of 12553466 is about 232.4098606141.

Adding to 12553466 its reverse (66435521), we get a palindrome (78988987).

The spelling of 12553466 in words is "twelve million, five hundred fifty-three thousand, four hundred sixty-six".