51330744 has 24 divisors (see below), whose sum is σ = 139020960. Its totient is φ = 17110224.

The previous prime is 51330743. The next prime is 51330757. The reversal of 51330744 is 44703315.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51330743) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 356392 + ... + 356535.

It is an arithmetic number, because the mean of its divisors is an integer number (5792540).

Almost surely, 2^51330744 is an apocalyptic number.

It is an amenable number.

51330744 is an abundant number, since it is smaller than the sum of its proper divisors (87690216).

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

51330744 is a wasteful number, since it uses less digits than its factorization.

51330744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712939 (or 712932 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 51330744 is about 7164.5477177558. The cubic root of 51330744 is about 371.6429108891.

The spelling of 51330744 in words is "fifty-one million, three hundred thirty thousand, seven hundred forty-four".