57042878 has 8 divisors (see below), whose sum is σ = 85617000. Its totient is φ = 28503880.

The previous prime is 57042823. The next prime is 57042889. The reversal of 57042878 is 87824075.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4253 + ... + 11496.

It is an arithmetic number, because the mean of its divisors is an integer number (10702125).

Almost surely, 2^57042878 is an apocalyptic number.

57042878 is a deficient number, since it is larger than the sum of its proper divisors (28574122).

57042878 is a wasteful number, since it uses less digits than its factorization.

57042878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17562.

The product of its (nonzero) digits is 125440, while the sum is 41.

The square root of 57042878 is about 7552.6735663605. The cubic root of 57042878 is about 384.9465895436.

The spelling of 57042878 in words is "fifty-seven million, forty-two thousand, eight hundred seventy-eight".