51883320 has 128 divisors (see below), whose sum is σ = 170683200. Its totient is φ = 12558336.

The previous prime is 51883313. The next prime is 51883369. The reversal of 51883320 is 2338815.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58722 + ... + 59598.

Almost surely, 2^51883320 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 51883320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85341600).

51883320 is an abundant number, since it is smaller than the sum of its proper divisors (118799880).

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

51883320 is a wasteful number, since it uses less digits than its factorization.

51883320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937 (or 933 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 51883320 is about 7203.0077051187. The cubic root of 51883320 is about 372.9717339207.

It can be divided in two parts, 518 and 83320, that added together give a palindrome (83838).

The spelling of 51883320 in words is "fifty-one million, eight hundred eighty-three thousand, three hundred twenty".