53981760 has 224 divisors, whose sum is σ = 203362560. Its totient is φ = 11870208.

The previous prime is 53981747. The next prime is 53981771. The reversal of 53981760 is 6718935.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 194742 + ... + 195018.

Almost surely, 2^53981760 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 53981760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101681280).

53981760 is an abundant number, since it is smaller than the sum of its proper divisors (149380800).

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

53981760 is a wasteful number, since it uses less digits than its factorization.

53981760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333 (or 323 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 39.

The square root of 53981760 is about 7347.2280487269. The cubic root of 53981760 is about 377.9337528427.

The spelling of 53981760 in words is "fifty-three million, nine hundred eighty-one thousand, seven hundred sixty".