12555995 has 16 divisors (see below), whose sum is σ = 15463872. Its totient is φ = 9784320.

The previous prime is 12555989. The next prime is 12555997. The reversal of 12555995 is 59955521.

It is not a de Polignac number, because 12555995 - 2⁶ = 12555931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12555997) 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, 39959 + ... + 40271.

It is an arithmetic number, because the mean of its divisors is an integer number (966492).

Almost surely, 2^12555995 is an apocalyptic number.

12555995 is a deficient number, since it is larger than the sum of its proper divisors (2907877).

12555995 is a wasteful number, since it uses less digits than its factorization.

12555995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502.

The product of its digits is 101250, while the sum is 41.

The square root of 12555995 is about 3543.4439462196. The cubic root of 12555995 is about 232.4254665318.

The spelling of 12555995 in words is "twelve million, five hundred fifty-five thousand, nine hundred ninety-five".