20500548 has 24 divisors (see below), whose sum is σ = 49378560. Its totient is φ = 6612960.

The previous prime is 20500541. The next prime is 20500577. The reversal of 20500548 is 84500502.

It is not an unprimeable number, because it can be changed into a prime (20500541) 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, 27183 + ... + 27926.

It is an arithmetic number, because the mean of its divisors is an integer number (2057440).

Almost surely, 2^20500548 is an apocalyptic number.

It is an amenable number.

20500548 is an abundant number, since it is smaller than the sum of its proper divisors (28878012).

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

20500548 is a wasteful number, since it uses less digits than its factorization.

20500548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55147 (or 55145 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 20500548 is about 4527.7530851406. The cubic root of 20500548 is about 273.6876224089.

The spelling of 20500548 in words is "twenty million, five hundred thousand, five hundred forty-eight".