53155538800 has 720 divisors, whose sum is σ = 173409789952. Its totient is φ = 15228518400.

The previous prime is 53155538791. The next prime is 53155538801. The reversal of 53155538800 is 883555135.

It is a super-2 number, since 2×53155538800² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53155538801) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 326107519 + ... + 326107681.

Almost surely, 2^53155538800 is an apocalyptic number.

53155538800 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 53155538800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86704894976).

53155538800 is an abundant number, since it is smaller than the sum of its proper divisors (120254251152).

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

53155538800 is a wasteful number, since it uses less digits than its factorization.

53155538800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 43.

The spelling of 53155538800 in words is "fifty-three billion, one hundred fifty-five million, five hundred thirty-eight thousand, eight hundred".