12554522 has 16 divisors (see below), whose sum is σ = 19219200. Its totient is φ = 6149520.

The previous prime is 12554501. The next prime is 12554533. The reversal of 12554522 is 22545521.

It is a junction number, because it is equal to n+sod(n) for n = 12554491 and 12554500.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28379 + ... + 28817.

It is an arithmetic number, because the mean of its divisors is an integer number (1201200).

Almost surely, 2^12554522 is an apocalyptic number.

12554522 is a deficient number, since it is larger than the sum of its proper divisors (6664678).

12554522 is a wasteful number, since it uses less digits than its factorization.

12554522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701.

The product of its digits is 4000, while the sum is 26.

The square root of 12554522 is about 3543.2360914847. The cubic root of 12554522 is about 232.4163772190.

Subtracting 12554522 from its reverse (22545521), we obtain a palindrome (9990999).

The spelling of 12554522 in words is "twelve million, five hundred fifty-four thousand, five hundred twenty-two".