57312873 has 16 divisors (see below), whose sum is σ = 89377600. Its totient is φ = 36197280.

The previous prime is 57312869. The next prime is 57312883. The reversal of 57312873 is 37821375.

57312873 is a `hidden beast` number, since 573 + 1 + 2 + 87 + 3 = 666.

57312873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 57312873 - 2² = 57312869 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 (57312823) 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 15 ways as a sum of consecutive naturals, for example, 55348 + ... + 56373.

It is an arithmetic number, because the mean of its divisors is an integer number (5586100).

Almost surely, 2^57312873 is an apocalyptic number.

It is an amenable number.

57312873 is a deficient number, since it is larger than the sum of its proper divisors (32064727).

57312873 is a wasteful number, since it uses less digits than its factorization.

57312873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111749 (or 111743 counting only the distinct ones).

The product of its digits is 35280, while the sum is 36.

The square root of 57312873 is about 7570.5265999136. The cubic root of 57312873 is about 385.5529761107.

It can be divided in two parts, 57312 and 873, that added together give a palindrome (58185).

The spelling of 57312873 in words is "fifty-seven million, three hundred twelve thousand, eight hundred seventy-three".