51769800 has 96 divisors (see below), whose sum is σ = 178336800. Its totient is φ = 13803840.

The previous prime is 51769799. The next prime is 51769829. The reversal of 51769800 is 896715.

51769800 is a `hidden beast` number, since 517 + 69 + 80 + 0 = 666.

51769800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51769800² = 5360224384080000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 23 ways as a sum of consecutive naturals, for example, 607 + ... + 10193.

It is an arithmetic number, because the mean of its divisors is an integer number (1857675).

Almost surely, 2^51769800 is an apocalyptic number.

51769800 is a gapful number since it is divisible by the number (50) 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 51769800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89168400).

51769800 is an abundant number, since it is smaller than the sum of its proper divisors (126567000).

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

51769800 is a wasteful number, since it uses less digits than its factorization.

51769800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9612 (or 9597 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 51769800 is about 7195.1233484910. The cubic root of 51769800 is about 372.6995162573.

The spelling of 51769800 in words is "fifty-one million, seven hundred sixty-nine thousand, eight hundred".