53223320400 has 60 divisors (see below), whose sum is σ = 170492040192. Its totient is φ = 14192885120.

The previous prime is 53223320357. The next prime is 53223320473. The reversal of 53223320400 is 402332235.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22175184 + ... + 22177583.

Almost surely, 2^53223320400 is an apocalyptic number.

53223320400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

53223320400 is an abundant number, since it is smaller than the sum of its proper divisors (117268719792).

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

53223320400 is a wasteful number, since it uses less digits than its factorization.

53223320400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44352788 (or 44352777 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 24.

Adding to 53223320400 its reverse (402332235), we get a palindrome (53625652635).

The spelling of 53223320400 in words is "fifty-three billion, two hundred twenty-three million, three hundred twenty thousand, four hundred".