12551442 has 16 divisors (see below), whose sum is σ = 25687200. Its totient is φ = 4086432.

The previous prime is 12551437. The next prime is 12551443. The reversal of 12551442 is 24415521.

12551442 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12551443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24067 + ... + 24582.

It is an arithmetic number, because the mean of its divisors is an integer number (1605450).

Almost surely, 2^12551442 is an apocalyptic number.

12551442 is an abundant number, since it is smaller than the sum of its proper divisors (13135758).

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

12551442 is a wasteful number, since it uses less digits than its factorization.

12551442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48697.

The product of its digits is 1600, while the sum is 24.

The square root of 12551442 is about 3542.8014338938. The cubic root of 12551442 is about 232.3973694333.

Adding to 12551442 its reverse (24415521), we get a palindrome (36966963).

The spelling of 12551442 in words is "twelve million, five hundred fifty-one thousand, four hundred forty-two".