53720053552 has 80 divisors (see below), whose sum is σ = 115605056160. Its totient is φ = 23979110400.

The previous prime is 53720053547. The next prime is 53720053591. The reversal of 53720053552 is 25535002735.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2155402 + ... + 2180182.

It is an arithmetic number, because the mean of its divisors is an integer number (1445063202).

Almost surely, 2^53720053552 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 53720053552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57802528080).

53720053552 is an abundant number, since it is smaller than the sum of its proper divisors (61885002608).

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

53720053552 is a wasteful number, since it uses less digits than its factorization.

53720053552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25022 (or 25016 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 37.

The spelling of 53720053552 in words is "fifty-three billion, seven hundred twenty million, fifty-three thousand, five hundred fifty-two".