53538720 has 48 divisors (see below), whose sum is σ = 168648480. Its totient is φ = 14276864.

The previous prime is 53538707. The next prime is 53538739. The reversal of 53538720 is 2783535.

53538720 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55290 + ... + 56249.

It is an arithmetic number, because the mean of its divisors is an integer number (3513510).

Almost surely, 2^53538720 is an apocalyptic number.

It is an amenable number.

53538720 is an abundant number, since it is smaller than the sum of its proper divisors (115109760).

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

53538720 is a wasteful number, since it uses less digits than its factorization.

53538720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111557 (or 111549 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 33.

The square root of 53538720 is about 7317.0157851408. The cubic root of 53538720 is about 376.8969832533.

The spelling of 53538720 in words is "fifty-three million, five hundred thirty-eight thousand, seven hundred twenty".