51938080 has 48 divisors (see below), whose sum is σ = 124213824. Its totient is φ = 20519680.

The previous prime is 51938069. The next prime is 51938093. The reversal of 51938080 is 8083915.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11325 + ... + 15235.

It is an arithmetic number, because the mean of its divisors is an integer number (2587788).

Almost surely, 2^51938080 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 51938080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62106912).

51938080 is an abundant number, since it is smaller than the sum of its proper divisors (72275744).

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

51938080 is a wasteful number, since it uses less digits than its factorization.

51938080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4009 (or 4001 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 34.

The square root of 51938080 is about 7206.8078925416. The cubic root of 51938080 is about 373.1029048566.

The spelling of 51938080 in words is "fifty-one million, nine hundred thirty-eight thousand, eighty".