12551404 has 12 divisors (see below), whose sum is σ = 22673728.
Its totient is φ = 6073200.
The previous prime is 12551393. The next prime is 12551417. The reversal of 12551404 is 40415521.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50487 + ... + 50734.
Almost surely, 212551404 is an apocalyptic number.
It is an amenable number.
12551404 is a deficient number, since it is larger than the sum of its proper divisors (10122324).
12551404 is a wasteful number, since it uses less digits than its factorization.
12551404 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101256 (or 101254 counting only the distinct ones).
The product of its (nonzero) digits is 800, while the sum is 22.
The square root of 12551404 is about 3542.7960709022.
The cubic root of 12551404 is about 232.3971349023.
Adding to 12551404 its reverse (40415521), we get a palindrome (52966925).
It can be divided in two parts, 125 and 51404, that added together give a square (51529 = 2272).
The spelling of 12551404 in words is "twelve million, five hundred fifty-one thousand, four hundred four".