51051232 has 48 divisors (see below), whose sum is σ = 104019552. Its totient is φ = 24647680.

The previous prime is 51051179. The next prime is 51051241. The reversal of 51051232 is 23215015.

51051232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 218988 + ... + 219220.

It is an arithmetic number, because the mean of its divisors is an integer number (2167074).

Almost surely, 2^51051232 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 51051232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52009776).

51051232 is an abundant number, since it is smaller than the sum of its proper divisors (52968320).

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

51051232 is a wasteful number, since it uses less digits than its factorization.

51051232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 51051232 is about 7145.0144856396. The cubic root of 51051232 is about 370.9671120189.

Adding to 51051232 its reverse (23215015), we get a palindrome (74266247).

The spelling of 51051232 in words is "fifty-one million, fifty-one thousand, two hundred thirty-two".