20450541 has 16 divisors (see below), whose sum is σ = 29101248. Its totient is φ = 12729600.

The previous prime is 20450531. The next prime is 20450543. The reversal of 20450541 is 14505402.

It is not a de Polignac number, because 20450541 - 2¹³ = 20442349 is a prime.

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5151 + ... + 8211.

It is an arithmetic number, because the mean of its divisors is an integer number (1818828).

Almost surely, 2^20450541 is an apocalyptic number.

It is an amenable number.

20450541 is a deficient number, since it is larger than the sum of its proper divisors (8650707).

20450541 is a wasteful number, since it uses less digits than its factorization.

20450541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3212.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 20450541 is about 4522.2274378894. The cubic root of 20450541 is about 273.4649057549.

Adding to 20450541 its reverse (14505402), we get a palindrome (34955943).

The spelling of 20450541 in words is "twenty million, four hundred fifty thousand, five hundred forty-one".