51795520 has 112 divisors (see below), whose sum is σ = 148498560. Its totient is φ = 16809984.

The previous prime is 51795511. The next prime is 51795533. The reversal of 51795520 is 2559715.

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

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, 41952 + ... + 43168.

It is an arithmetic number, because the mean of its divisors is an integer number (1325880).

Almost surely, 2^51795520 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 51795520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74249280).

51795520 is an abundant number, since it is smaller than the sum of its proper divisors (96703040).

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

51795520 is a wasteful number, since it uses less digits than its factorization.

51795520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1260 (or 1250 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 34.

The square root of 51795520 is about 7196.9104482410. The cubic root of 51795520 is about 372.7612269106.

The spelling of 51795520 in words is "fifty-one million, seven hundred ninety-five thousand, five hundred twenty".