12554878 has 12 divisors (see below), whose sum is σ = 21907152. Its totient is φ = 5380620.

The previous prime is 12554873. The next prime is 12554879. The reversal of 12554878 is 87845521.

It is a self number, because there is not a number n which added to its sum of digits gives 12554878.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12554873) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 63958 + ... + 64153.

It is an arithmetic number, because the mean of its divisors is an integer number (1825596).

Almost surely, 2^12554878 is an apocalyptic number.

12554878 is a deficient number, since it is larger than the sum of its proper divisors (9352274).

12554878 is a wasteful number, since it uses less digits than its factorization.

12554878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128127 (or 128120 counting only the distinct ones).

The product of its digits is 89600, while the sum is 40.

The square root of 12554878 is about 3543.2863276907. The cubic root of 12554878 is about 232.4185740223.

The spelling of 12554878 in words is "twelve million, five hundred fifty-four thousand, eight hundred seventy-eight".