20045225532 has 24 divisors (see below), whose sum is σ = 46797377872. Its totient is φ = 6678144000.

The previous prime is 20045225531. The next prime is 20045225579. The reversal of 20045225532 is 23552254002.

It is a super-2 number, since 2×20045225532² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20045225532.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20045225531) 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 7 ways as a sum of consecutive naturals, for example, 426469 + ... + 471132.

Almost surely, 2^20045225532 is an apocalyptic number.

It is an amenable number.

20045225532 is an abundant number, since it is smaller than the sum of its proper divisors (26752152340).

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

20045225532 is a wasteful number, since it uses less digits than its factorization.

20045225532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 899469 (or 899467 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 20045225532 its reverse (23552254002), we get a palindrome (43597479534).

The spelling of 20045225532 in words is "twenty billion, forty-five million, two hundred twenty-five thousand, five hundred thirty-two".