57148887 has 8 divisors (see below), whose sum is σ = 77447920. Its totient is φ = 37474560.

The previous prime is 57148867. The next prime is 57148901. The reversal of 57148887 is 78884175.

57148887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 57148887 - 2¹⁴ = 57132503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57148867) 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 7 ways as a sum of consecutive naturals, for example, 155962 + ... + 156327.

It is an arithmetic number, because the mean of its divisors is an integer number (9680990).

Almost surely, 2^57148887 is an apocalyptic number.

57148887 is a deficient number, since it is larger than the sum of its proper divisors (20299033).

57148887 is a wasteful number, since it uses less digits than its factorization.

57148887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312353.

The product of its digits is 501760, while the sum is 48.

The square root of 57148887 is about 7559.6882872245. The cubic root of 57148887 is about 385.1849047158.

The spelling of 57148887 in words is "fifty-seven million, one hundred forty-eight thousand, eight hundred eighty-seven".