20525315312 has 80 divisors (see below), whose sum is σ = 40645017600. Its totient is φ = 10039873536.

The previous prime is 20525315311. The next prime is 20525315329. The reversal of 20525315312 is 21351352502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20525315311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78042893 + ... + 78043155.

It is an arithmetic number, because the mean of its divisors is an integer number (508062720).

Almost surely, 2^20525315312 is an apocalyptic number.

It is an amenable number.

20525315312 is a deficient number, since it is larger than the sum of its proper divisors (20119702288).

20525315312 is a wasteful number, since it uses less digits than its factorization.

20525315312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 790 (or 784 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

Adding to 20525315312 its reverse (21351352502), we get a palindrome (41876667814).

The spelling of 20525315312 in words is "twenty billion, five hundred twenty-five million, three hundred fifteen thousand, three hundred twelve".