20520245025202 has 8 divisors (see below), whose sum is σ = 33148088117676. Its totient is φ = 9470882319312.

The previous prime is 20520245025143. The next prime is 20520245025227. The reversal of 20520245025202 is 20252054202502.

It can be written as a sum of positive squares in 2 ways, for example, as 20517720063201 + 2524962001 = 4529649^2 + 50249^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394620096613 + ... + 394620096664.

Almost surely, 2^{20520245025202} is an apocalyptic number.

20520245025202 is a deficient number, since it is larger than the sum of its proper divisors (12627843092474).

20520245025202 is a wasteful number, since it uses less digits than its factorization.

20520245025202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789240193292.

The product of its (nonzero) digits is 32000, while the sum is 31.

Adding to 20520245025202 its reverse (20252054202502), we get a palindrome (40772299227704).

The spelling of 20520245025202 in words is "twenty trillion, five hundred twenty billion, two hundred forty-five million, twenty-five thousand, two hundred two".