57887221 has 8 divisors (see below), whose sum is σ = 67564800. Its totient is φ = 48561648.

The previous prime is 57887213. The next prime is 57887233. The reversal of 57887221 is 12278875.

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 57887221 - 2³ = 57887213 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 (57887821) 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, 87646 + ... + 88303.

It is an arithmetic number, because the mean of its divisors is an integer number (8445600).

Almost surely, 2^57887221 is an apocalyptic number.

It is an amenable number.

57887221 is a deficient number, since it is larger than the sum of its proper divisors (9677579).

57887221 is a wasteful number, since it uses less digits than its factorization.

57887221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176003.

The product of its digits is 62720, while the sum is 40.

The square root of 57887221 is about 7608.3651989110. The cubic root of 57887221 is about 386.8366083977.

The spelling of 57887221 in words is "fifty-seven million, eight hundred eighty-seven thousand, two hundred twenty-one".