12512955 has 64 divisors (see below), whose sum is σ = 25159680. Its totient is φ = 5170176.

The previous prime is 12512953. The next prime is 12512959. The reversal of 12512955 is 55921521.

It is not a de Polignac number, because 12512955 - 2¹ = 12512953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12512953) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 121434 + ... + 121536.

It is an arithmetic number, because the mean of its divisors is an integer number (393120).

Almost surely, 2^12512955 is an apocalyptic number.

12512955 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12512955 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

12512955 is a wasteful number, since it uses less digits than its factorization.

12512955 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220.

The product of its digits is 4500, while the sum is 30.

The square root of 12512955 is about 3537.3655451480. The cubic root of 12512955 is about 232.1595897097.

The spelling of 12512955 in words is "twelve million, five hundred twelve thousand, nine hundred fifty-five".