12800553 has 8 divisors (see below), whose sum is σ = 17172768. Its totient is φ = 8481024.

The previous prime is 12800549. The next prime is 12800573. The reversal of 12800553 is 35500821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12800553 - 2² = 12800549 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12800503) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12600 + ... + 13577.

It is an arithmetic number, because the mean of its divisors is an integer number (2146596).

Almost surely, 2^12800553 is an apocalyptic number.

It is an amenable number.

12800553 is a deficient number, since it is larger than the sum of its proper divisors (4372215).

12800553 is a wasteful number, since it uses less digits than its factorization.

12800553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26343.

The product of its (nonzero) digits is 1200, while the sum is 24.

The square root of 12800553 is about 3577.7860472644. The cubic root of 12800553 is about 233.9247877206.

The spelling of 12800553 in words is "twelve million, eight hundred thousand, five hundred fifty-three".