12553591 has 8 divisors (see below), whose sum is σ = 12787200. Its totient is φ = 12321792.

The previous prime is 12553579. The next prime is 12553603. The reversal of 12553591 is 19535521.

It is an interprime number because it is at equal distance from previous prime (12553579) and next prime (12553603).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12553591 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 (12553511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27735 + ... + 28183.

It is an arithmetic number, because the mean of its divisors is an integer number (1598400).

Almost surely, 2^12553591 is an apocalyptic number.

12553591 is a deficient number, since it is larger than the sum of its proper divisors (233609).

12553591 is an equidigital number, since it uses as much as digits as its factorization.

12553591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 905.

The product of its digits is 6750, while the sum is 31.

The square root of 12553591 is about 3543.1047119723. The cubic root of 12553591 is about 232.4106320116.

The spelling of 12553591 in words is "twelve million, five hundred fifty-three thousand, five hundred ninety-one".