20059500 has 96 divisors (see below), whose sum is σ = 59963904. Its totient is φ = 5208000.

The previous prime is 20059477. The next prime is 20059517. The reversal of 20059500 is 595002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64345 + ... + 64655.

It is an arithmetic number, because the mean of its divisors is an integer number (624624).

Almost surely, 2^20059500 is an apocalyptic number.

20059500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20059500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29981952).

20059500 is an abundant number, since it is smaller than the sum of its proper divisors (39904404).

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

20059500 is a wasteful number, since it uses less digits than its factorization.

20059500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 21.

The square root of 20059500 is about 4478.7833169288. The cubic root of 20059500 is about 271.7106749102.

The spelling of 20059500 in words is "twenty million, fifty-nine thousand, five hundred".