53328366 has 72 divisors (see below), whose sum is σ = 144779544. Its totient is φ = 14061600.

The previous prime is 53328311. The next prime is 53328377. The reversal of 53328366 is 66382335.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 53328366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 9141 + ... + 13791.

It is an arithmetic number, because the mean of its divisors is an integer number (2010827).

Almost surely, 2^53328366 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53328366, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72389772).

53328366 is an abundant number, since it is smaller than the sum of its proper divisors (91451178).

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

53328366 is a wasteful number, since it uses less digits than its factorization.

53328366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4686 (or 4676 counting only the distinct ones).

The product of its digits is 77760, while the sum is 36.

The square root of 53328366 is about 7302.6273354184. The cubic root of 53328366 is about 376.4027250905.

The spelling of 53328366 in words is "fifty-three million, three hundred twenty-eight thousand, three hundred sixty-six".