12553505 has 4 divisors (see below), whose sum is σ = 15064212. Its totient is φ = 10042800.

The previous prime is 12553493. The next prime is 12553511. The reversal of 12553505 is 50535521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 50535521 = 113 ⋅447217.

It can be written as a sum of positive squares in 2 ways, for example, as 1577536 + 10975969 = 1256^2 + 3313^2 .

It is not a de Polignac number, because 12553505 - 2¹⁰ = 12552481 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255346 + ... + 1255355.

It is an arithmetic number, because the mean of its divisors is an integer number (3766053).

Almost surely, 2^12553505 is an apocalyptic number.

It is an amenable number.

12553505 is a deficient number, since it is larger than the sum of its proper divisors (2510707).

12553505 is an equidigital number, since it uses as much as digits as its factorization.

12553505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510706.

The product of its (nonzero) digits is 3750, while the sum is 26.

The square root of 12553505 is about 3543.0925757028. The cubic root of 12553505 is about 232.4101012907.

The spelling of 12553505 in words is "twelve million, five hundred fifty-three thousand, five hundred five".