20520125032 has 32 divisors (see below), whose sum is σ = 42067810080. Its totient is φ = 9306256960.

The previous prime is 20520124997. The next prime is 20520125033. The reversal of 20520125032 is 23052102502.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 20520124994 and 20520125012.

It is not an unprimeable number, because it can be changed into a prime (20520125033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224203 + ... + 302170.

It is an arithmetic number, because the mean of its divisors is an integer number (1314619065).

Almost surely, 2^20520125032 is an apocalyptic number.

20520125032 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20520125032 is an abundant number, since it is smaller than the sum of its proper divisors (21547685048).

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

20520125032 is a wasteful number, since it uses less digits than its factorization.

20520125032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526833 (or 526829 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

Adding to 20520125032 its reverse (23052102502), we get a palindrome (43572227534).

The spelling of 20520125032 in words is "twenty billion, five hundred twenty million, one hundred twenty-five thousand, thirty-two".