53866560 has 112 divisors (see below), whose sum is σ = 186610752. Its totient is φ = 13056000.

The previous prime is 53866541. The next prime is 53866597. The reversal of 53866560 is 6566835.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8010 + ... + 13110.

Almost surely, 2^53866560 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 53866560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93305376).

53866560 is an abundant number, since it is smaller than the sum of its proper divisors (132744192).

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

53866560 is a wasteful number, since it uses less digits than its factorization.

53866560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5132 (or 5122 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 39.

The square root of 53866560 is about 7339.3841703511. The cubic root of 53866560 is about 377.6647176729.

The spelling of 53866560 in words is "fifty-three million, eight hundred sixty-six thousand, five hundred sixty".