51803976 has 160 divisors (see below), whose sum is σ = 161337600. Its totient is φ = 13829760.

The previous prime is 51803933. The next prime is 51804001. The reversal of 51803976 is 67930815.

51803976 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 7.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1671081 + ... + 1671111.

It is an arithmetic number, because the mean of its divisors is an integer number (1008360).

Almost surely, 2^51803976 is an apocalyptic number.

51803976 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51803976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80668800).

51803976 is an abundant number, since it is smaller than the sum of its proper divisors (109533624).

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

51803976 is a wasteful number, since it uses less digits than its factorization.

51803976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 72 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 51803976 is about 7197.4978985756. The cubic root of 51803976 is about 372.7815111451.

The spelling of 51803976 in words is "fifty-one million, eight hundred three thousand, nine hundred seventy-six".