12486553 has 4 divisors (see below), whose sum is σ = 13143760. Its totient is φ = 11829348.

The previous prime is 12486547. The next prime is 12486571. The reversal of 12486553 is 35568421.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12486553 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12486533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 328575 + ... + 328612.

It is an arithmetic number, because the mean of its divisors is an integer number (3285940).

Almost surely, 2^12486553 is an apocalyptic number.

It is an amenable number.

12486553 is a deficient number, since it is larger than the sum of its proper divisors (657207).

12486553 is an equidigital number, since it uses as much as digits as its factorization.

12486553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657206.

The product of its digits is 28800, while the sum is 34.

The square root of 12486553 is about 3533.6317012388. The cubic root of 12486553 is about 231.9961912276.

The spelling of 12486553 in words is "twelve million, four hundred eighty-six thousand, five hundred fifty-three".