20225355020 has 96 divisors (see below), whose sum is σ = 46364270400. Its totient is φ = 7366385664.

The previous prime is 20225355019. The next prime is 20225355023. The reversal of 20225355020 is 2055352202.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (20225355023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13582436 + ... + 13583924.

It is an arithmetic number, because the mean of its divisors is an integer number (482961150).

Almost surely, 2^20225355020 is an apocalyptic number.

20225355020 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 20225355020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23182135200).

20225355020 is an abundant number, since it is smaller than the sum of its proper divisors (26138915380).

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

20225355020 is a wasteful number, since it uses less digits than its factorization.

20225355020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187 (or 2185 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 26.

The spelling of 20225355020 in words is "twenty billion, two hundred twenty-five million, three hundred fifty-five thousand, twenty".