51444030 has 32 divisors (see below), whose sum is σ = 134690688. Its totient is φ = 12471200.

The previous prime is 51443983. The next prime is 51444037. The reversal of 51444030 is 3044415.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51443988 and 51444006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51444037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77616 + ... + 78275.

It is an arithmetic number, because the mean of its divisors is an integer number (4209084).

Almost surely, 2^51444030 is an apocalyptic number.

51444030 is an abundant number, since it is smaller than the sum of its proper divisors (83246658).

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

51444030 is a wasteful number, since it uses less digits than its factorization.

51444030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155912.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 51444030 is about 7172.4493724250. The cubic root of 51444030 is about 371.9161130074.

Adding to 51444030 its reverse (3044415), we get a palindrome (54488445).

It can be divided in two parts, 514 and 44030, that added together give a palindrome (44544).

The spelling of 51444030 in words is "fifty-one million, four hundred forty-four thousand, thirty".