53565768 has 96 divisors (see below), whose sum is σ = 151856640. Its totient is φ = 17038080.

The previous prime is 53565727. The next prime is 53565791. The reversal of 53565768 is 86756535.

53565768 is a `hidden beast` number, since 535 + 6 + 57 + 68 = 666.

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 23 ways as a sum of consecutive naturals, for example, 229780 + ... + 230012.

It is an arithmetic number, because the mean of its divisors is an integer number (1581840).

Almost surely, 2^53565768 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 53565768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75928320).

53565768 is an abundant number, since it is smaller than the sum of its proper divisors (98290872).

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

53565768 is a wasteful number, since it uses less digits than its factorization.

53565768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 372 counting only the distinct ones).

The product of its digits is 756000, while the sum is 45.

The square root of 53565768 is about 7318.8638462537. The cubic root of 53565768 is about 376.9604425798.

The spelling of 53565768 in words is "fifty-three million, five hundred sixty-five thousand, seven hundred sixty-eight".