51201514421200 has 240 divisors, whose sum is σ = 149500525104000. Its totient is φ = 16593883084800.

The previous prime is 51201514421179. The next prime is 51201514421201. The reversal of 51201514421200 is 212441510215.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51201514421201) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 13774500 + ... + 17092099.

It is an arithmetic number, because the mean of its divisors is an integer number (622918854600).

Almost surely, 2^{51201514421200} is an apocalyptic number.

51201514421200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51201514421200 is an abundant number, since it is smaller than the sum of its proper divisors (98299010682800).

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

51201514421200 is a wasteful number, since it uses less digits than its factorization.

51201514421200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30866670 (or 30866659 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 51201514421200 its reverse (212441510215), we get a palindrome (51413955931415).

The spelling of 51201514421200 in words is "fifty-one trillion, two hundred one billion, five hundred fourteen million, four hundred twenty-one thousand, two hundred".