20537208 has 48 divisors (see below), whose sum is σ = 56019600. Its totient is φ = 6796800.

The previous prime is 20537189. The next prime is 20537213. The reversal of 20537208 is 80273502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9928 + ... + 11816.

It is an arithmetic number, because the mean of its divisors is an integer number (1167075).

Almost surely, 2^20537208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20537208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28009800).

20537208 is an abundant number, since it is smaller than the sum of its proper divisors (35482392).

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

20537208 is a wasteful number, since it uses less digits than its factorization.

20537208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052 (or 2045 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20537208 is about 4531.7996425261. The cubic root of 20537208 is about 273.8506654237.

It can be divided in two parts, 2053 and 7208, that added together give a cube (9261 = 21³).

The spelling of 20537208 in words is "twenty million, five hundred thirty-seven thousand, two hundred eight".