57273920 has 112 divisors (see below), whose sum is σ = 152083008. Its totient is φ = 20367360.

The previous prime is 57273919. The next prime is 57273929. The reversal of 57273920 is 2937275.

57273920 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (57273929) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 186407 + ... + 186713.

It is an arithmetic number, because the mean of its divisors is an integer number (1357884).

Almost surely, 2^57273920 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 57273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76041504).

57273920 is an abundant number, since it is smaller than the sum of its proper divisors (94809088).

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

57273920 is a wasteful number, since it uses less digits than its factorization.

57273920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 26460, while the sum is 35.

The square root of 57273920 is about 7567.9534882292. The cubic root of 57273920 is about 385.4656086018.

The spelling of 57273920 in words is "fifty-seven million, two hundred seventy-three thousand, nine hundred twenty".