57881361 has 8 divisors (see below), whose sum is σ = 79836480. Its totient is φ = 37256912.

The previous prime is 57881333. The next prime is 57881389. The reversal of 57881361 is 16318875.

57881361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (57881333) and next prime (57881389).

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 57881361 - 2⁶ = 57881297 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57888361) 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, 332565 + ... + 332738.

It is an arithmetic number, because the mean of its divisors is an integer number (9979560).

Almost surely, 2^57881361 is an apocalyptic number.

It is an amenable number.

57881361 is a deficient number, since it is larger than the sum of its proper divisors (21955119).

57881361 is a wasteful number, since it uses less digits than its factorization.

57881361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665335.

The product of its digits is 40320, while the sum is 39.

The square root of 57881361 is about 7607.9800867247. The cubic root of 57881361 is about 386.8235546299.

The spelling of 57881361 in words is "fifty-seven million, eight hundred eighty-one thousand, three hundred sixty-one".