12550478 has 8 divisors (see below), whose sum is σ = 18998760. Its totient is φ = 6217560.

The previous prime is 12550463. The next prime is 12550481. The reversal of 12550478 is 87405521.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 28568 + ... + 29003.

It is an arithmetic number, because the mean of its divisors is an integer number (2374845).

Almost surely, 2^12550478 is an apocalyptic number.

12550478 is a deficient number, since it is larger than the sum of its proper divisors (6448282).

12550478 is a wasteful number, since it uses less digits than its factorization.

12550478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57682.

The product of its (nonzero) digits is 11200, while the sum is 32.

The square root of 12550478 is about 3542.6653807550. The cubic root of 12550478 is about 232.3914196043.

Adding to 12550478 its reverse (87405521), we get a palindrome (99955999).

The spelling of 12550478 in words is "twelve million, five hundred fifty thousand, four hundred seventy-eight".