20145050 has 24 divisors (see below), whose sum is σ = 37587996. Its totient is φ = 8032640.

The previous prime is 20145031. The next prime is 20145077. The reversal of 20145050 is 5054102.

It can be written as a sum of positive squares in 6 ways, for example, as 758641 + 19386409 = 871^2 + 4403^2 .

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 11 ways as a sum of consecutive naturals, for example, 30524 + ... + 31176.

Almost surely, 2^20145050 is an apocalyptic number.

20145050 is a deficient number, since it is larger than the sum of its proper divisors (17442946).

20145050 is a wasteful number, since it uses less digits than its factorization.

20145050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282 (or 1277 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 20145050 is about 4488.3237405517. The cubic root of 20145050 is about 272.0963920906.

Adding to 20145050 its reverse (5054102), we get a palindrome (25199152).

The spelling of 20145050 in words is "twenty million, one hundred forty-five thousand, fifty".