12008554 has 4 divisors (see below), whose sum is σ = 18012834. Its totient is φ = 6004276.

The previous prime is 12008543. The next prime is 12008569. The reversal of 12008554 is 45580021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 45580021 = 491 ⋅92831.

It can be written as a sum of positive squares in only one way, i.e., 7049025 + 4959529 = 2655^2 + 2227^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3002137 + ... + 3002140.

Almost surely, 2^12008554 is an apocalyptic number.

12008554 is a deficient number, since it is larger than the sum of its proper divisors (6004280).

12008554 is an equidigital number, since it uses as much as digits as its factorization.

12008554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6004279.

The product of its (nonzero) digits is 1600, while the sum is 25.

The square root of 12008554 is about 3465.3360587395. The cubic root of 12008554 is about 228.9972349545.

Adding to 12008554 its reverse (45580021), we get a palindrome (57588575).

The spelling of 12008554 in words is "twelve million, eight thousand, five hundred fifty-four".