57157078 has 16 divisors (see below), whose sum is σ = 94207680. Its totient is φ = 25792200.

The previous prime is 57157033. The next prime is 57157081. The reversal of 57157078 is 87075175.

It is a happy number.

57157078 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 57157078.

It is a congruent number.

It is an unprimeable number.

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, 6288 + ... + 12403.

It is an arithmetic number, because the mean of its divisors is an integer number (5887980).

Almost surely, 2^57157078 is an apocalyptic number.

57157078 is a deficient number, since it is larger than the sum of its proper divisors (37050602).

57157078 is a wasteful number, since it uses less digits than its factorization.

57157078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18843.

The product of its (nonzero) digits is 68600, while the sum is 40.

The square root of 57157078 is about 7560.2300229557. The cubic root of 57157078 is about 385.2033063506.

The spelling of 57157078 in words is "fifty-seven million, one hundred fifty-seven thousand, seventy-eight".