51441144 has 16 divisors (see below), whose sum is σ = 128602920. Its totient is φ = 17147040.

The previous prime is 51441127. The next prime is 51441163. The reversal of 51441144 is 44114415.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 2143381 = 51441144 / (5 + 1 + 4 + 4 + 1 + 1 + 4 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1071667 + ... + 1071714.

Almost surely, 2^51441144 is an apocalyptic number.

It is an amenable number.

51441144 is an abundant number, since it is smaller than the sum of its proper divisors (77161776).

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

51441144 is a wasteful number, since it uses less digits than its factorization.

51441144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143390 (or 2143386 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 51441144 is about 7172.2481831013. The cubic root of 51441144 is about 371.9091580704.

Adding to 51441144 its reverse (44114415), we get a palindrome (95555559).

The spelling of 51441144 in words is "fifty-one million, four hundred forty-one thousand, one hundred forty-four".