51043824 has 160 divisors (see below), whose sum is σ = 161448000. Its totient is φ = 15344640.

The previous prime is 51043807. The next prime is 51043849. The reversal of 51043824 is 42834015.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 342502 + ... + 342650.

It is an arithmetic number, because the mean of its divisors is an integer number (1009050).

Almost surely, 2^51043824 is an apocalyptic number.

51043824 is a gapful number since it is divisible by the number (54) 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 51043824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (80724000).

51043824 is an abundant number, since it is smaller than the sum of its proper divisors (110404176).

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

51043824 is a wasteful number, since it uses less digits than its factorization.

51043824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 51043824 is about 7144.4960634043. The cubic root of 51043824 is about 370.9491675790.

Adding to 51043824 its reverse (42834015), we get a palindrome (93877839).

The spelling of 51043824 in words is "fifty-one million, forty-three thousand, eight hundred twenty-four".