20558060 has 24 divisors (see below), whose sum is σ = 43342656. Its totient is φ = 8190720.

The previous prime is 20558059. The next prime is 20558077. The reversal of 20558060 is 6085502.

It is an unprimeable number.

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, 3524 + ... + 7316.

It is an arithmetic number, because the mean of its divisors is an integer number (1805944).

Almost surely, 2^20558060 is an apocalyptic number.

20558060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20558060 is an abundant number, since it is smaller than the sum of its proper divisors (22784596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20558060 is a wasteful number, since it uses less digits than its factorization.

20558060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073 (or 4071 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 20558060 is about 4534.0996901259. The cubic root of 20558060 is about 273.9433168128.

The spelling of 20558060 in words is "twenty million, five hundred fifty-eight thousand, sixty".