52721431224200 has 96 divisors (see below), whose sum is σ = 125944230247560. Its totient is φ = 20509809408000.

The previous prime is 52721431224197. The next prime is 52721431224211. The reversal of 52721431224200 is 242213412725.

It can be written as a sum of positive squares in 12 ways, for example, as 5999530967236 + 46721900256964 = 2449394^2 + 6835342^2 .

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, 15737300 + ... + 18791100.

Almost surely, 2^{52721431224200} is an apocalyptic number.

52721431224200 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 52721431224200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62972115123780).

52721431224200 is an abundant number, since it is smaller than the sum of its proper divisors (73222799023360).

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

52721431224200 is a wasteful number, since it uses less digits than its factorization.

52721431224200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3056187 (or 3056178 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

Adding to 52721431224200 its reverse (242213412725), we get a palindrome (52963644636925).

The spelling of 52721431224200 in words is "fifty-two trillion, seven hundred twenty-one billion, four hundred thirty-one million, two hundred twenty-four thousand, two hundred".