51331523023200 has 288 divisors, whose sum is σ = 192410932412160. Its totient is φ = 11643354777600.

The previous prime is 51331523023153. The next prime is 51331523023213. The reversal of 51331523023200 is 232032513315.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9461215 + ... + 13862814.

It is an arithmetic number, because the mean of its divisors is an integer number (668093515320).

Almost surely, 2^{51331523023200} is an apocalyptic number.

51331523023200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51331523023200 is an abundant number, since it is smaller than the sum of its proper divisors (141079409388960).

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

51331523023200 is a wasteful number, since it uses less digits than its factorization.

51331523023200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23324190 (or 23324177 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 30.

Adding to 51331523023200 its reverse (232032513315), we get a palindrome (51563555536515).

The spelling of 51331523023200 in words is "fifty-one trillion, three hundred thirty-one billion, five hundred twenty-three million, twenty-three thousand, two hundred".