57878355 has 16 divisors (see below), whose sum is σ = 93049344. Its totient is φ = 30720480.

The previous prime is 57878299. The next prime is 57878363. The reversal of 57878355 is 55387875.

It is a happy number.

It is not a de Polignac number, because 57878355 - 2¹⁰ = 57877331 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5979 + ... + 12308.

It is an arithmetic number, because the mean of its divisors is an integer number (5815584).

Almost surely, 2^57878355 is an apocalyptic number.

57878355 is a deficient number, since it is larger than the sum of its proper divisors (35170989).

57878355 is a wasteful number, since it uses less digits than its factorization.

57878355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18506.

The product of its digits is 1176000, while the sum is 48.

The square root of 57878355 is about 7607.7825284376. The cubic root of 57878355 is about 386.8168581061.

The spelling of 57878355 in words is "fifty-seven million, eight hundred seventy-eight thousand, three hundred fifty-five".