20522455124 has 12 divisors (see below), whose sum is σ = 35932330644. Its totient is φ = 10256074944.

The previous prime is 20522455069. The next prime is 20522455139. The reversal of 20522455124 is 42155422502.

It can be written as a sum of positive squares in 2 ways, for example, as 16200707524 + 4321747600 = 127282^2 + 65740^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1279187 + ... + 1295130.

It is an arithmetic number, because the mean of its divisors is an integer number (2994360887).

Almost surely, 2^20522455124 is an apocalyptic number.

It is an amenable number.

20522455124 is a deficient number, since it is larger than the sum of its proper divisors (15409875520).

20522455124 is a wasteful number, since it uses less digits than its factorization.

20522455124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2576314 (or 2576312 counting only the distinct ones).

The product of its (nonzero) digits is 32000, while the sum is 32.

Adding to 20522455124 its reverse (42155422502), we get a palindrome (62677877626).

The spelling of 20522455124 in words is "twenty billion, five hundred twenty-two million, four hundred fifty-five thousand, one hundred twenty-four".