53534440800 has 216 divisors, whose sum is σ = 195286094640. Its totient is φ = 13783526400.

The previous prime is 53534440789. The next prime is 53534440847. The reversal of 53534440800 is 804443535.

53534440800 is a `hidden beast` number, since 5 + 3 + 534 + 4 + 40 + 80 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 80605 + ... + 336995.

It is an arithmetic number, because the mean of its divisors is an integer number (904102290).

Almost surely, 2^53534440800 is an apocalyptic number.

53534440800 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 53534440800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97643047320).

53534440800 is an abundant number, since it is smaller than the sum of its proper divisors (141751653840).

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

53534440800 is a wasteful number, since it uses less digits than its factorization.

53534440800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256446 (or 256430 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 53534440800 in words is "fifty-three billion, five hundred thirty-four million, four hundred forty thousand, eight hundred".