57878851 has 4 divisors (see below), whose sum is σ = 57963304. Its totient is φ = 57794400.

The previous prime is 57878827. The next prime is 57878857. The reversal of 57878851 is 15887875.

57878851 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 57878851 - 2¹¹ = 57876803 is a prime.

It is a super-2 number, since 2×57878851² = 6699922786160402, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57878795 and 57878804.

It is not an unprimeable number, because it can be changed into a prime (57878857) 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 3 ways as a sum of consecutive naturals, for example, 41190 + ... + 42571.

It is an arithmetic number, because the mean of its divisors is an integer number (14490826).

Almost surely, 2^57878851 is an apocalyptic number.

57878851 is a deficient number, since it is larger than the sum of its proper divisors (84453).

57878851 is an equidigital number, since it uses as much as digits as its factorization.

57878851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84452.

The product of its digits is 627200, while the sum is 49.

The square root of 57878851 is about 7607.8151265656. The cubic root of 57878851 is about 386.8179630708.

The spelling of 57878851 in words is "fifty-seven million, eight hundred seventy-eight thousand, eight hundred fifty-one".