53551760 has 80 divisors (see below), whose sum is σ = 128908416. Its totient is φ = 20680704.

The previous prime is 53551733. The next prime is 53551769. The reversal of 53551760 is 6715535.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (53551769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 519869 + ... + 519971.

Almost surely, 2^53551760 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 53551760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64454208).

53551760 is an abundant number, since it is smaller than the sum of its proper divisors (75356656).

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

53551760 is a wasteful number, since it uses less digits than its factorization.

53551760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280 (or 274 counting only the distinct ones).

The product of its (nonzero) digits is 15750, while the sum is 32.

The square root of 53551760 is about 7317.9068045446. The cubic root of 53551760 is about 376.9275800357.

The spelling of 53551760 in words is "fifty-three million, five hundred fifty-one thousand, seven hundred sixty".