53551360 has 144 divisors (see below), whose sum is σ = 143047296. Its totient is φ = 19103744.

The previous prime is 53551349. The next prime is 53551363. The reversal of 53551360 is 6315535.

It is a happy number.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53551363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 500427 + ... + 500533.

It is an arithmetic number, because the mean of its divisors is an integer number (993384).

Almost surely, 2^53551360 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 53551360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71523648).

53551360 is an abundant number, since it is smaller than the sum of its proper divisors (89495936).

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

53551360 is a wasteful number, since it uses less digits than its factorization.

53551360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 154 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 28.

The square root of 53551360 is about 7317.8794742740. The cubic root of 53551360 is about 376.9266415579.

Adding to 53551360 its reverse (6315535), we get a palindrome (59866895).

The spelling of 53551360 in words is "fifty-three million, five hundred fifty-one thousand, three hundred sixty".