53385856 has 32 divisors (see below), whose sum is σ = 106686900. Its totient is φ = 26609664.

The previous prime is 53385853. The next prime is 53385859. The reversal of 53385856 is 65858335.

It is an interprime number because it is at equal distance from previous prime (53385853) and next prime (53385859).

It can be written as a sum of positive squares in 2 ways, for example, as 52417600 + 968256 = 7240^2 + 984^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is not an unprimeable number, because it can be changed into a prime (53385853) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 72466 + ... + 73198.

Almost surely, 2^53385856 is an apocalyptic number.

It is an amenable number.

53385856 is a deficient number, since it is larger than the sum of its proper divisors (53301044).

53385856 is an equidigital number, since it uses as much as digits as its factorization.

53385856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 1304 counting only the distinct ones).

The product of its digits is 432000, while the sum is 43.

The square root of 53385856 is about 7306.5625296715. The cubic root of 53385856 is about 376.5379353167.

The spelling of 53385856 in words is "fifty-three million, three hundred eighty-five thousand, eight hundred fifty-six".