20525054218 has 8 divisors (see below), whose sum is σ = 31012308612. Its totient is φ = 10187618016.

The previous prime is 20525054201. The next prime is 20525054219. The reversal of 20525054218 is 81245052502.

It can be written as a sum of positive squares in 2 ways, for example, as 19578445929 + 946608289 = 139923^2 + 30767^2 .

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 (20525054219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37454205 + ... + 37454752.

Almost surely, 2^20525054218 is an apocalyptic number.

20525054218 is a deficient number, since it is larger than the sum of its proper divisors (10487254394).

20525054218 is a wasteful number, since it uses less digits than its factorization.

20525054218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74909096.

The product of its (nonzero) digits is 32000, while the sum is 34.

The spelling of 20525054218 in words is "twenty billion, five hundred twenty-five million, fifty-four thousand, two hundred eighteen".