12959555 has 32 divisors (see below), whose sum is σ = 18585600. Its totient is φ = 8491392.

The previous prime is 12959543. The next prime is 12959561. The reversal of 12959555 is 55595921.

It is not a de Polignac number, because 12959555 - 2⁸ = 12959299 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118841 + ... + 118949.

It is an arithmetic number, because the mean of its divisors is an integer number (580800).

Almost surely, 2^12959555 is an apocalyptic number.

12959555 is a deficient number, since it is larger than the sum of its proper divisors (5626045).

12959555 is a wasteful number, since it uses less digits than its factorization.

12959555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243.

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

The square root of 12959555 is about 3599.9381939139. The cubic root of 12959555 is about 234.8893699886.

The spelling of 12959555 in words is "twelve million, nine hundred fifty-nine thousand, five hundred fifty-five".