53355121144 has 96 divisors (see below), whose sum is σ = 109970058240. Its totient is φ = 24255004800.

The previous prime is 53355121103. The next prime is 53355121177. The reversal of 53355121144 is 44112155335.

53355121144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 27629859 + ... + 27631789.

It is an arithmetic number, because the mean of its divisors is an integer number (1145521440).

Almost surely, 2^53355121144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53355121144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54985029120).

53355121144 is an abundant number, since it is smaller than the sum of its proper divisors (56614937096).

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

53355121144 is a wasteful number, since it uses less digits than its factorization.

53355121144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261 (or 2244 counting only the distinct ones).

The product of its digits is 36000, while the sum is 34.

Adding to 53355121144 its reverse (44112155335), we get a palindrome (97467276479).

The spelling of 53355121144 in words is "fifty-three billion, three hundred fifty-five million, one hundred twenty-one thousand, one hundred forty-four".