12580551 has 6 divisors (see below), whose sum is σ = 18171920. Its totient is φ = 8387028.

The previous prime is 12580549. The next prime is 12580571. The reversal of 12580551 is 15508521.

It is not a de Polignac number, because 12580551 - 2¹ = 12580549 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 (12580571) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 698911 + ... + 698928.

Almost surely, 2^12580551 is an apocalyptic number.

12580551 is a deficient number, since it is larger than the sum of its proper divisors (5591369).

12580551 is a wasteful number, since it uses less digits than its factorization.

12580551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397845 (or 1397842 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 27.

The square root of 12580551 is about 3546.9072443468. The cubic root of 12580551 is about 232.5768875085.

It can be divided in two parts, 12580 and 551, that added together give a palindrome (13131).

The spelling of 12580551 in words is "twelve million, five hundred eighty thousand, five hundred fifty-one".