51444288 has 112 divisors (see below), whose sum is σ = 172882560. Its totient is φ = 14694912.

The previous prime is 51444269. The next prime is 51444377. The reversal of 51444288 is 88244415.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9970 + ... + 14222.

Almost surely, 2^51444288 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51444288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86441280).

51444288 is an abundant number, since it is smaller than the sum of its proper divisors (121438272).

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

51444288 is a wasteful number, since it uses less digits than its factorization.

51444288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4281 (or 4265 counting only the distinct ones).

The product of its digits is 40960, while the sum is 36.

The square root of 51444288 is about 7172.4673578902. The cubic root of 51444288 is about 371.9167347459.

The spelling of 51444288 in words is "fifty-one million, four hundred forty-four thousand, two hundred eighty-eight".