51332372504 has 128 divisors (see below), whose sum is σ = 119851315200. Its totient is φ = 20113920000.

The previous prime is 51332372489. The next prime is 51332372557. The reversal of 51332372504 is 40527323315.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13224644 + ... + 13228524.

It is an arithmetic number, because the mean of its divisors is an integer number (936338400).

Almost surely, 2^51332372504 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 51332372504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59925657600).

51332372504 is an abundant number, since it is smaller than the sum of its proper divisors (68518942696).

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

51332372504 is a wasteful number, since it uses less digits than its factorization.

51332372504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4345 (or 4341 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 35.

Adding to 51332372504 its reverse (40527323315), we get a palindrome (91859695819).

The spelling of 51332372504 in words is "fifty-one billion, three hundred thirty-two million, three hundred seventy-two thousand, five hundred four".