51220534352304 has 160 divisors (see below), whose sum is σ = 139659333373440. Its totient is φ = 16143616456704.

The previous prime is 51220534352287. The next prime is 51220534352321. The reversal of 51220534352304 is 40325343502215.

51220534352304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51220534352287) and next prime (51220534352321).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402098127 + ... + 402225489.

It is an arithmetic number, because the mean of its divisors is an integer number (872870833584).

Almost surely, 2^{51220534352304} 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 51220534352304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69829666686720).

51220534352304 is an abundant number, since it is smaller than the sum of its proper divisors (88438799021136).

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

51220534352304 is a wasteful number, since it uses less digits than its factorization.

51220534352304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131579 (or 131573 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 51220534352304 its reverse (40325343502215), we get a palindrome (91545877854519).

The spelling of 51220534352304 in words is "fifty-one trillion, two hundred twenty billion, five hundred thirty-four million, three hundred fifty-two thousand, three hundred four".