57058221 has 8 divisors (see below), whose sum is σ = 82993824. Its totient is φ = 34580720.

The previous prime is 57058207. The next prime is 57058223. The reversal of 57058221 is 12285075.

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 57058221 - 2¹¹ = 57056173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57058223) 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, 864486 + ... + 864551.

It is an arithmetic number, because the mean of its divisors is an integer number (10374228).

Almost surely, 2^57058221 is an apocalyptic number.

It is an amenable number.

57058221 is a deficient number, since it is larger than the sum of its proper divisors (25935603).

57058221 is a wasteful number, since it uses less digits than its factorization.

57058221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729051.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 57058221 is about 7553.6892310976. The cubic root of 57058221 is about 384.9810998761.

The spelling of 57058221 in words is "fifty-seven million, fifty-eight thousand, two hundred twenty-one".