51303760 has 80 divisors (see below), whose sum is σ = 124849152. Its totient is φ = 19584000.

The previous prime is 51303757. The next prime is 51303787. The reversal of 51303760 is 6730315.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

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, 339685 + ... + 339835.

Almost surely, 2^51303760 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 51303760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62424576).

51303760 is an abundant number, since it is smaller than the sum of its proper divisors (73545392).

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

51303760 is a wasteful number, since it uses less digits than its factorization.

51303760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 51303760 is about 7162.6643087611. The cubic root of 51303760 is about 371.5777766290.

The spelling of 51303760 in words is "fifty-one million, three hundred three thousand, seven hundred sixty".