57256032 has 48 divisors (see below), whose sum is σ = 151260480. Its totient is φ = 18963072.

The previous prime is 57256027. The next prime is 57256097. The reversal of 57256032 is 23065275.

It is a tau number, because it is divible by the number of its divisors (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, 13819 + ... + 17477.

It is an arithmetic number, because the mean of its divisors is an integer number (3151260).

Almost surely, 2^57256032 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 57256032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75630240).

57256032 is an abundant number, since it is smaller than the sum of its proper divisors (94004448).

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

57256032 is a wasteful number, since it uses less digits than its factorization.

57256032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3835 (or 3827 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 30.

The square root of 57256032 is about 7566.7715704916. The cubic root of 57256032 is about 385.4254744141.

The spelling of 57256032 in words is "fifty-seven million, two hundred fifty-six thousand, thirty-two".