20544850 has 24 divisors (see below), whose sum is σ = 38429460. Its totient is φ = 8171520.

The previous prime is 20544817. The next prime is 20544851. The reversal of 20544850 is 5844502.

It can be written as a sum of positive squares in 6 ways, for example, as 2812329 + 17732521 = 1677^2 + 4211^2 .

It is not an unprimeable number, because it can be changed into a prime (20544851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8586 + ... + 10714.

Almost surely, 2^20544850 is an apocalyptic number.

20544850 is a deficient number, since it is larger than the sum of its proper divisors (17884610).

20544850 is a wasteful number, since it uses less digits than its factorization.

20544850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2334 (or 2329 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 20544850 is about 4532.6427170030. The cubic root of 20544850 is about 273.8846282887.

The spelling of 20544850 in words is "twenty million, five hundred forty-four thousand, eight hundred fifty".