20005205352 has 64 divisors (see below), whose sum is σ = 55069632000. Its totient is φ = 6005519040.

The previous prime is 20005205333. The next prime is 20005205359. The reversal of 20005205352 is 25350250002.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (20005205359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325852 + ... + 382347.

It is an arithmetic number, because the mean of its divisors is an integer number (860463000).

Almost surely, 2^20005205352 is an apocalyptic number.

20005205352 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20005205352 is an abundant number, since it is smaller than the sum of its proper divisors (35064426648).

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

20005205352 is a wasteful number, since it uses less digits than its factorization.

20005205352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708326 (or 708322 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 24.

Adding to 20005205352 its reverse (25350250002), we get a palindrome (45355455354).

The spelling of 20005205352 in words is "twenty billion, five million, two hundred five thousand, three hundred fifty-two".