57878725 has 6 divisors (see below), whose sum is σ = 71769650. Its totient is φ = 46302960.

The previous prime is 57878719. The next prime is 57878729. The reversal of 57878725 is 52787875.

It is a happy number.

57878725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 13549761 + 44328964 = 3681^2 + 6658^2 .

It is not a de Polignac number, because 57878725 - 2¹⁷ = 57747653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57878729) 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 5 ways as a sum of consecutive naturals, for example, 1157550 + ... + 1157599.

Almost surely, 2^57878725 is an apocalyptic number.

It is an amenable number.

57878725 is a deficient number, since it is larger than the sum of its proper divisors (13890925).

57878725 is a wasteful number, since it uses less digits than its factorization.

57878725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315159 (or 2315154 counting only the distinct ones).

The product of its digits is 1097600, while the sum is 49.

The square root of 57878725 is about 7607.8068456027. The cubic root of 57878725 is about 386.8176823747.

The spelling of 57878725 in words is "fifty-seven million, eight hundred seventy-eight thousand, seven hundred twenty-five".