51324450051400 has 96 divisors (see below), whose sum is σ = 119676357801000. Its totient is φ = 20470104115200.

The previous prime is 51324450051349. The next prime is 51324450051439. The reversal of 51324450051400 is 415005442315.

It can be written as a sum of positive squares in 12 ways, for example, as 1707951016996 + 49616499034404 = 1306886^2 + 7043898^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 339279780 + ... + 339431020.

Almost surely, 2^{51324450051400} is an apocalyptic number.

51324450051400 is a gapful number since it is divisible by the number (50) 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 51324450051400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59838178900500).

51324450051400 is an abundant number, since it is smaller than the sum of its proper divisors (68351907749600).

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

51324450051400 is a wasteful number, since it uses less digits than its factorization.

51324450051400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156179 (or 156170 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 51324450051400 its reverse (415005442315), we get a palindrome (51739455493715).

The spelling of 51324450051400 in words is "fifty-one trillion, three hundred twenty-four billion, four hundred fifty million, fifty-one thousand, four hundred".