53546520720 has 640 divisors, whose sum is σ = 215391928320. Its totient is φ = 10679040000.

The previous prime is 53546520719. The next prime is 53546520757. The reversal of 53546520720 is 2702564535.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 86504571 + ... + 86505189.

It is an arithmetic number, because the mean of its divisors is an integer number (336549888).

Almost surely, 2^53546520720 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 53546520720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107695964160).

53546520720 is an abundant number, since it is smaller than the sum of its proper divisors (161845407600).

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

53546520720 is a wasteful number, since it uses less digits than its factorization.

53546520720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 835 (or 829 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 39.

The spelling of 53546520720 in words is "fifty-three billion, five hundred forty-six million, five hundred twenty thousand, seven hundred twenty".