58291221 has 8 divisors (see below), whose sum is σ = 81812320. Its totient is φ = 36815472.

The previous prime is 58291193. The next prime is 58291229. The reversal of 58291221 is 12219285.

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

It is not a de Polignac number, because 58291221 - 2⁹ = 58290709 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 (58291229) 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, 511270 + ... + 511383.

It is an arithmetic number, because the mean of its divisors is an integer number (10226540).

Almost surely, 2^58291221 is an apocalyptic number.

It is an amenable number.

58291221 is a deficient number, since it is larger than the sum of its proper divisors (23521099).

58291221 is a wasteful number, since it uses less digits than its factorization.

58291221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1022675.

The product of its digits is 2880, while the sum is 30.

The square root of 58291221 is about 7634.8687611510. The cubic root of 58291221 is about 387.7344451548.

The spelling of 58291221 in words is "fifty-eight million, two hundred ninety-one thousand, two hundred twenty-one".