53453537280 has 960 divisors, whose sum is σ = 224598124800. Its totient is φ = 11961630720.

The previous prime is 53453537233. The next prime is 53453537281. The reversal of 53453537280 is 8273535435.

53453537280 is a `hidden beast` number, since 5 + 3 + 4 + 535 + 37 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53453537281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4111810554 + ... + 4111810566.

It is an arithmetic number, because the mean of its divisors is an integer number (233956380).

Almost surely, 2^53453537280 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 53453537280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112299062400).

53453537280 is an abundant number, since it is smaller than the sum of its proper divisors (171144587520).

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

53453537280 is an equidigital number, since it uses as much as digits as its factorization.

53453537280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 34 counting only the distinct ones).

The product of its (nonzero) digits is 1512000, while the sum is 45.

The spelling of 53453537280 in words is "fifty-three billion, four hundred fifty-three million, five hundred thirty-seven thousand, two hundred eighty".