20275200000 has 612 divisors, whose sum is σ = 79866278856. Its totient is φ = 4915200000.

The previous prime is 20275199999. The next prime is 20275200007. The reversal of 20275200000 is 257202.

It is a happy number.

It is a super-2 number, since 2×20275200000² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20275200007) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1843199995 + ... + 1843200005.

Almost surely, 2^20275200000 is an apocalyptic number.

20275200000 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 20275200000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39933139428).

20275200000 is an abundant number, since it is smaller than the sum of its proper divisors (59591078856).

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

20275200000 is an frugal number, since it uses more digits than its factorization.

20275200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 21 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

Adding to 20275200000 its reverse (257202), we get a palindrome (20275457202).

The spelling of 20275200000 in words is "twenty billion, two hundred seventy-five million, two hundred thousand".