12555091 has 8 divisors (see below), whose sum is σ = 12774384. Its totient is φ = 12337920.

The previous prime is 12555083. The next prime is 12555107. The reversal of 12555091 is 19055521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12555091 - 2³ = 12555083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12555041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15076 + ... + 15886.

It is an arithmetic number, because the mean of its divisors is an integer number (1596798).

Almost surely, 2^12555091 is an apocalyptic number.

12555091 is a deficient number, since it is larger than the sum of its proper divisors (219293).

12555091 is a wasteful number, since it uses less digits than its factorization.

12555091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 12555091 is about 3543.3163844060. The cubic root of 12555091 is about 232.4198883820.

The spelling of 12555091 in words is "twelve million, five hundred fifty-five thousand, ninety-one".