20522057072 has 40 divisors (see below), whose sum is σ = 44194604400. Its totient is φ = 9152199680.

The previous prime is 20522057051. The next prime is 20522057131. The reversal of 20522057072 is 27075022502.

It is a congruent number.

It is an unprimeable number.

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, 1090697 + ... + 1109352.

It is an arithmetic number, because the mean of its divisors is an integer number (1104865110).

Almost surely, 2^20522057072 is an apocalyptic number.

20522057072 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20522057072 is an abundant number, since it is smaller than the sum of its proper divisors (23672547328).

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

20522057072 is a wasteful number, since it uses less digits than its factorization.

20522057072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200121 (or 2200115 counting only the distinct ones).

The product of its (nonzero) digits is 19600, while the sum is 32.

Adding to 20522057072 its reverse (27075022502), we get a palindrome (47597079574).

The spelling of 20522057072 in words is "twenty billion, five hundred twenty-two million, fifty-seven thousand, seventy-two".