57103878 has 16 divisors (see below), whose sum is σ = 122993136. Its totient is φ = 17570400.

The previous prime is 57103877. The next prime is 57103889. The reversal of 57103878 is 87830175.

57103878 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 (39).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57103877) 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 7 ways as a sum of consecutive naturals, for example, 365973 + ... + 366128.

It is an arithmetic number, because the mean of its divisors is an integer number (7687071).

Almost surely, 2^57103878 is an apocalyptic number.

57103878 is an abundant number, since it is smaller than the sum of its proper divisors (65889258).

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

57103878 is a wasteful number, since it uses less digits than its factorization.

57103878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732119.

The product of its (nonzero) digits is 47040, while the sum is 39.

The square root of 57103878 is about 7556.7107924017. The cubic root of 57103878 is about 385.0837575683.

The spelling of 57103878 in words is "fifty-seven million, one hundred three thousand, eight hundred seventy-eight".