53615328 has 48 divisors (see below), whose sum is σ = 151569936. Its totient is φ = 16496640.

The previous prime is 53615293. The next prime is 53615329. The reversal of 53615328 is 82351635.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53615329) 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 7 ways as a sum of consecutive naturals, for example, 20233 + ... + 22728.

It is an arithmetic number, because the mean of its divisors is an integer number (3157707).

Almost surely, 2^53615328 is an apocalyptic number.

It is an amenable number.

53615328 is an abundant number, since it is smaller than the sum of its proper divisors (97954608).

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

53615328 is a wasteful number, since it uses less digits than its factorization.

53615328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42987 (or 42979 counting only the distinct ones).

The product of its digits is 21600, while the sum is 33.

The square root of 53615328 is about 7322.2488348867. The cubic root of 53615328 is about 377.0766635763.

The spelling of 53615328 in words is "fifty-three million, six hundred fifteen thousand, three hundred twenty-eight".