51435031232 has 56 divisors (see below), whose sum is σ = 110020705536. Its totient is φ = 23716988928.

The previous prime is 51435031229. The next prime is 51435031247. The reversal of 51435031232 is 23213053415.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51435031195 and 51435031204.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 875948 + ... + 932820.

It is an arithmetic number, because the mean of its divisors is an integer number (1964655456).

Almost surely, 2^51435031232 is an apocalyptic number.

51435031232 is a gapful number since it is divisible by the number (52) 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 51435031232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55010352768).

51435031232 is an abundant number, since it is smaller than the sum of its proper divisors (58585674304).

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

51435031232 is a wasteful number, since it uses less digits than its factorization.

51435031232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57985 (or 57975 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

Adding to 51435031232 its reverse (23213053415), we get a palindrome (74648084647).

The spelling of 51435031232 in words is "fifty-one billion, four hundred thirty-five million, thirty-one thousand, two hundred thirty-two".