12600551 has 4 divisors (see below), whose sum is σ = 12609792. Its totient is φ = 12591312.

The previous prime is 12600521. The next prime is 12600557. The reversal of 12600551 is 15500621.

12600551 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12600551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12600557) 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, 2126 + ... + 5451.

It is an arithmetic number, because the mean of its divisors is an integer number (3152448).

Almost surely, 2^12600551 is an apocalyptic number.

12600551 is a deficient number, since it is larger than the sum of its proper divisors (9241).

12600551 is an equidigital number, since it uses as much as digits as its factorization.

12600551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9240.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 12600551 is about 3549.7254823437. The cubic root of 12600551 is about 232.7000690498.

The spelling of 12600551 in words is "twelve million, six hundred thousand, five hundred fifty-one".