53856520 has 32 divisors (see below), whose sum is σ = 121492800. Its totient is φ = 21486528.

The previous prime is 53856503. The next prime is 53856521. The reversal of 53856520 is 2565835.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (53856521) 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, 16027 + ... + 19093.

It is an arithmetic number, because the mean of its divisors is an integer number (3796650).

Almost surely, 2^53856520 is an apocalyptic number.

It is an amenable number.

53856520 is an abundant number, since it is smaller than the sum of its proper divisors (67636280).

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

53856520 is a wasteful number, since it uses less digits than its factorization.

53856520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3517 (or 3513 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 53856520 is about 7338.7001573848. The cubic root of 53856520 is about 377.6412523457.

The spelling of 53856520 in words is "fifty-three million, eight hundred fifty-six thousand, five hundred twenty".