12445554 has 32 divisors (see below), whose sum is σ = 27293760. Its totient is φ = 3752000.

The previous prime is 12445549. The next prime is 12445561. The reversal of 12445554 is 45554421.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17404 + ... + 18104.

It is an arithmetic number, because the mean of its divisors is an integer number (852930).

Almost surely, 2^12445554 is an apocalyptic number.

12445554 is an abundant number, since it is smaller than the sum of its proper divisors (14848206).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12445554 is a wasteful number, since it uses less digits than its factorization.

12445554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its digits is 16000, while the sum is 30.

The square root of 12445554 is about 3527.8256759653. The cubic root of 12445554 is about 231.7419966771.

Adding to 12445554 its reverse (45554421), we get a palindrome (57999975).

The spelling of 12445554 in words is "twelve million, four hundred forty-five thousand, five hundred fifty-four".