20545225372 has 24 divisors (see below), whose sum is σ = 41094073440. Its totient is φ = 8804320320.

The previous prime is 20545225307. The next prime is 20545225391. The reversal of 20545225372 is 27352254502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 385722 + ... + 435742.

It is an arithmetic number, because the mean of its divisors is an integer number (1712253060).

Almost surely, 2^20545225372 is an apocalyptic number.

It is an amenable number.

20545225372 is an abundant number, since it is smaller than the sum of its proper divisors (20548848068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20545225372 is a wasteful number, since it uses less digits than its factorization.

20545225372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64701 (or 64699 counting only the distinct ones).

The product of its (nonzero) digits is 168000, while the sum is 37.

Adding to 20545225372 its reverse (27352254502), we get a palindrome (47897479874).

The spelling of 20545225372 in words is "twenty billion, five hundred forty-five million, two hundred twenty-five thousand, three hundred seventy-two".