57249316887 has 8 divisors (see below), whose sum is σ = 87237054336. Its totient is φ = 32713895352.

The previous prime is 57249316877. The next prime is 57249316913. The reversal of 57249316887 is 78861394275.

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

It is not a de Polignac number, because 57249316887 - 2¹⁸ = 57249054743 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 57249316887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57249316877) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1363078953 + ... + 1363078994.

It is an arithmetic number, because the mean of its divisors is an integer number (10904631792).

Almost surely, 2^57249316887 is an apocalyptic number.

57249316887 is a deficient number, since it is larger than the sum of its proper divisors (29987737449).

57249316887 is a wasteful number, since it uses less digits than its factorization.

57249316887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2726157957.

The product of its digits is 20321280, while the sum is 60.

The spelling of 57249316887 in words is "fifty-seven billion, two hundred forty-nine million, three hundred sixteen thousand, eight hundred eighty-seven".