53051440000 has 320 divisors, whose sum is σ = 147215376000. Its totient is φ = 18902016000.

The previous prime is 53051439983. The next prime is 53051440003. The reversal of 53051440000 is 4415035.

It is a tau number, because it is divible by the number of its divisors (320).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53051440003) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 30159121 + ... + 30160879.

It is an arithmetic number, because the mean of its divisors is an integer number (460048050).

Almost surely, 2^53051440000 is an apocalyptic number.

53051440000 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 53051440000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73607688000).

53051440000 is an abundant number, since it is smaller than the sum of its proper divisors (94163936000).

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

53051440000 is a wasteful number, since it uses less digits than its factorization.

53051440000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1835 (or 1808 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 53051440000 its reverse (4415035), we get a palindrome (53055855035).

The spelling of 53051440000 in words is "fifty-three billion, fifty-one million, four hundred forty thousand".