51940224000 has 1408 divisors, whose sum is σ = 232984627200. Its totient is φ = 11147673600.

The previous prime is 51940223963. The next prime is 51940224059. The reversal of 51940224000 is 42204915.

51940224000 is a `hidden beast` number, since 5 + 19 + 402 + 240 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 459647944 + ... + 459648056.

Almost surely, 2^51940224000 is an apocalyptic number.

51940224000 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 51940224000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116492313600).

51940224000 is an abundant number, since it is smaller than the sum of its proper divisors (181044403200).

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

51940224000 is a wasteful number, since it uses less digits than its factorization.

51940224000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 51940224000 its reverse (42204915), we get a palindrome (51982428915).

The spelling of 51940224000 in words is "fifty-one billion, nine hundred forty million, two hundred twenty-four thousand".