53231040000 has 800 divisors, whose sum is σ = 202105680480. Its totient is φ = 13824000000.

The previous prime is 53231039941. The next prime is 53231040001. The reversal of 53231040000 is 4013235.

It is a tau number, because it is divible by the number of its divisors (800).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53231040001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 527039950 + ... + 527040050.

Almost surely, 2^53231040000 is an apocalyptic number.

53231040000 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 53231040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101052840240).

53231040000 is an abundant number, since it is smaller than the sum of its proper divisors (148874640480).

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

53231040000 is an equidigital number, since it uses as much as digits as its factorization.

53231040000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

Adding to 53231040000 its reverse (4013235), we get a palindrome (53235053235).

The spelling of 53231040000 in words is "fifty-three billion, two hundred thirty-one million, forty thousand".