12512553 has 4 divisors (see below), whose sum is σ = 16683408. Its totient is φ = 8341700.

The previous prime is 12512531. The next prime is 12512557. The reversal of 12512553 is 35521521.

It is a happy number.

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-12512553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12512557) 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, 2085423 + ... + 2085428.

It is an arithmetic number, because the mean of its divisors is an integer number (4170852).

Almost surely, 2^12512553 is an apocalyptic number.

It is an amenable number.

12512553 is a deficient number, since it is larger than the sum of its proper divisors (4170855).

12512553 is an equidigital number, since it uses as much as digits as its factorization.

12512553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4170854.

The product of its digits is 1500, while the sum is 24.

The square root of 12512553 is about 3537.3087227439. The cubic root of 12512553 is about 232.1571035089.

The spelling of 12512553 in words is "twelve million, five hundred twelve thousand, five hundred fifty-three".