57245216 has 48 divisors (see below), whose sum is σ = 132302016. Its totient is φ = 23867136.

The previous prime is 57245207. The next prime is 57245231. The reversal of 57245216 is 61254275.

57245216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 4835 + ... + 11741.

It is an arithmetic number, because the mean of its divisors is an integer number (2756292).

Almost surely, 2^57245216 is an apocalyptic number.

57245216 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57245216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66151008).

57245216 is an abundant number, since it is smaller than the sum of its proper divisors (75056800).

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

57245216 is a wasteful number, since it uses less digits than its factorization.

57245216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6961 (or 6953 counting only the distinct ones).

The product of its digits is 16800, while the sum is 32.

The square root of 57245216 is about 7566.0568329877. The cubic root of 57245216 is about 385.4012031754.

The spelling of 57245216 in words is "fifty-seven million, two hundred forty-five thousand, two hundred sixteen".