12513655 has 16 divisors (see below), whose sum is σ = 18722304. Its totient is φ = 7800480.

The previous prime is 12513653. The next prime is 12513689. The reversal of 12513655 is 55631521.

It is not a de Polignac number, because 12513655 - 2¹ = 12513653 is a prime.

It is a super-2 number, since 2×12513655² = 313183122918050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12513653) 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 15 ways as a sum of consecutive naturals, for example, 15867 + ... + 16636.

It is an arithmetic number, because the mean of its divisors is an integer number (1170144).

Almost surely, 2^12513655 is an apocalyptic number.

12513655 is a deficient number, since it is larger than the sum of its proper divisors (6208649).

12513655 is a wasteful number, since it uses less digits than its factorization.

12513655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32526.

The product of its digits is 4500, while the sum is 28.

The square root of 12513655 is about 3537.4644874543. The cubic root of 12513655 is about 232.1639187879.

The spelling of 12513655 in words is "twelve million, five hundred thirteen thousand, six hundred fifty-five".