20522275600 has 60 divisors (see below), whose sum is σ = 49364340480. Its totient is φ = 8198992000.

The previous prime is 20522275597. The next prime is 20522275601. The reversal of 20522275600 is 657222502.

It is not an unprimeable number, because it can be changed into a prime (20522275601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 305025 + ... + 366175.

It is an arithmetic number, because the mean of its divisors is an integer number (822739008).

Almost surely, 2^20522275600 is an apocalyptic number.

20522275600 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 20522275600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24682170240).

20522275600 is an abundant number, since it is smaller than the sum of its proper divisors (28842064880).

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

20522275600 is a wasteful number, since it uses less digits than its factorization.

20522275600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62008 (or 61997 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The spelling of 20522275600 in words is "twenty billion, five hundred twenty-two million, two hundred seventy-five thousand, six hundred".