51444412 has 6 divisors (see below), whose sum is σ = 90027728. Its totient is φ = 25722204.

The previous prime is 51444389. The next prime is 51444413. The reversal of 51444412 is 21444415.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51444413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6430548 + ... + 6430555.

Almost surely, 2^51444412 is an apocalyptic number.

It is an amenable number.

51444412 is a deficient number, since it is larger than the sum of its proper divisors (38583316).

51444412 is a wasteful number, since it uses less digits than its factorization.

51444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12861107 (or 12861105 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 51444412 is about 7172.4760020512. The cubic root of 51444412 is about 371.9170335652.

Adding to 51444412 its reverse (21444415), we get a palindrome (72888827).

The spelling of 51444412 in words is "fifty-one million, four hundred forty-four thousand, four hundred twelve".