20545202 has 8 divisors (see below), whose sum is σ = 30866412. Its totient is φ = 10256400.

The previous prime is 20545201. The next prime is 20545207. The reversal of 20545202 is 20254502.

It can be written as a sum of positive squares in 2 ways, for example, as 18671041 + 1874161 = 4321^2 + 1369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (20545201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6449 + ... + 9092.

Almost surely, 2^20545202 is an apocalyptic number.

20545202 is a deficient number, since it is larger than the sum of its proper divisors (10321210).

20545202 is a wasteful number, since it uses less digits than its factorization.

20545202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16204.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 20545202 is about 4532.6815462814. The cubic root of 20545202 is about 273.8861924574.

Adding to 20545202 its reverse (20254502), we get a palindrome (40799704).

The spelling of 20545202 in words is "twenty million, five hundred forty-five thousand, two hundred two".