53057568 has 96 divisors (see below), whose sum is σ = 144559296. Its totient is φ = 17031168.

The previous prime is 53057539. The next prime is 53057581. The reversal of 53057568 is 86575035.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469480 + ... + 469592.

It is an arithmetic number, because the mean of its divisors is an integer number (1505826).

Almost surely, 2^53057568 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53057568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72279648).

53057568 is an abundant number, since it is smaller than the sum of its proper divisors (91501728).

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

53057568 is a wasteful number, since it uses less digits than its factorization.

53057568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266 (or 258 counting only the distinct ones).

The product of its (nonzero) digits is 126000, while the sum is 39.

The square root of 53057568 is about 7284.0626026964. The cubic root of 53057568 is about 375.7645273796.

The spelling of 53057568 in words is "fifty-three million, fifty-seven thousand, five hundred sixty-eight".