57845856 has 48 divisors (see below), whose sum is σ = 152334000. Its totient is φ = 19219968.

The previous prime is 57845839. The next prime is 57845867. The reversal of 57845856 is 65854875.

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

It is a super-2 number, since 2×57845856² = 6692286112745472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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, 36570 + ... + 38118.

It is an arithmetic number, because the mean of its divisors is an integer number (3173625).

Almost surely, 2^57845856 is an apocalyptic number.

It is an amenable number.

57845856 is an abundant number, since it is smaller than the sum of its proper divisors (94488144).

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

57845856 is a wasteful number, since it uses less digits than its factorization.

57845856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1951 (or 1943 counting only the distinct ones).

The product of its digits is 1344000, while the sum is 48.

The square root of 57845856 is about 7605.6463236204. The cubic root of 57845856 is about 386.7444446525.

The spelling of 57845856 in words is "fifty-seven million, eight hundred forty-five thousand, eight hundred fifty-six".