51830044 has 48 divisors (see below), whose sum is σ = 108740800. Its totient is φ = 21591360.

The previous prime is 51830039. The next prime is 51830057. The reversal of 51830044 is 44003815.

It is a super-2 number, since 2×51830044² = 5372706922083872, which contains 22 as substring.

It is a congruent number.

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, 50254 + ... + 51274.

Almost surely, 2^51830044 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 51830044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54370400).

51830044 is an abundant number, since it is smaller than the sum of its proper divisors (56910756).

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

51830044 is a wasteful number, since it uses less digits than its factorization.

51830044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083 (or 1067 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 51830044 is about 7199.3085779122. The cubic root of 51830044 is about 372.8440291192.

Adding to 51830044 its reverse (44003815), we get a palindrome (95833859).

The spelling of 51830044 in words is "fifty-one million, eight hundred thirty thousand, forty-four".