20425200000 has 192 divisors, whose sum is σ = 67817690640. Its totient is φ = 5446400000.

The previous prime is 20425199941. The next prime is 20425200007. The reversal of 20425200000 is 252402.

It is a tau number, because it is divible by the number of its divisors (192).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425200007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1191490 + ... + 1208510.

Almost surely, 2^20425200000 is an apocalyptic number.

20425200000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20425200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33908845320).

20425200000 is an abundant number, since it is smaller than the sum of its proper divisors (47392490640).

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

20425200000 is an frugal number, since it uses more digits than its factorization.

20425200000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17063 (or 17031 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 15.

Adding to 20425200000 its reverse (252402), we get a palindrome (20425452402).

The spelling of 20425200000 in words is "twenty billion, four hundred twenty-five million, two hundred thousand".