57287073 has 8 divisors (see below), whose sum is σ = 76896000. Its totient is φ = 37934768.

The previous prime is 57287023. The next prime is 57287107. The reversal of 57287073 is 37078275.

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

It is a cyclic number.

It is not a de Polignac number, because 57287073 - 2²¹ = 55189921 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (57287003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63633 + ... + 64526.

It is an arithmetic number, because the mean of its divisors is an integer number (9612000).

Almost surely, 2^57287073 is an apocalyptic number.

It is an amenable number.

57287073 is a deficient number, since it is larger than the sum of its proper divisors (19608927).

57287073 is a wasteful number, since it uses less digits than its factorization.

57287073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128311.

The product of its (nonzero) digits is 82320, while the sum is 39.

The square root of 57287073 is about 7568.8224315279. The cubic root of 57287073 is about 385.4951138350.

The spelling of 57287073 in words is "fifty-seven million, two hundred eighty-seven thousand, seventy-three".