12652551 has 8 divisors (see below), whose sum is σ = 18744560. Its totient is φ = 8435016.

The previous prime is 12652517. The next prime is 12652567. The reversal of 12652551 is 15525621.

12652551 is a `hidden beast` number, since 1 + 2 + 652 + 5 + 5 + 1 = 666.

It is not a de Polignac number, because 12652551 - 2¹⁷ = 12521479 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 468613 = 12652551 / (1 + 2 + 6 + 5 + 2 + 5 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12652511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234280 + ... + 234333.

It is an arithmetic number, because the mean of its divisors is an integer number (2343070).

Almost surely, 2^12652551 is an apocalyptic number.

12652551 is a deficient number, since it is larger than the sum of its proper divisors (6092009).

12652551 is an equidigital number, since it uses as much as digits as its factorization.

12652551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468622 (or 468616 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 12652551 is about 3557.0424512508. The cubic root of 12652551 is about 233.0197322222.

It can be divided in two parts, 12652 and 551, that added together give a triangular number (13203 = T₁₆₂).

The spelling of 12652551 in words is "twelve million, six hundred fifty-two thousand, five hundred fifty-one".