12550451 has 4 divisors (see below), whose sum is σ = 12576504. Its totient is φ = 12524400.

The previous prime is 12550441. The next prime is 12550459. The reversal of 12550451 is 15405521.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12550451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12550459) by changing a digit.

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, 12290 + ... + 13271.

It is an arithmetic number, because the mean of its divisors is an integer number (3144126).

Almost surely, 2^12550451 is an apocalyptic number.

12550451 is a deficient number, since it is larger than the sum of its proper divisors (26053).

12550451 is an equidigital number, since it uses as much as digits as its factorization.

12550451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26052.

The product of its (nonzero) digits is 1000, while the sum is 23.

The square root of 12550451 is about 3542.6615700628. The cubic root of 12550451 is about 232.3912529554.

Adding to 12550451 its reverse (15405521), we get a palindrome (27955972).

The spelling of 12550451 in words is "twelve million, five hundred fifty thousand, four hundred fifty-one".