252520561106 has 12 divisors (see below), whose sum is σ = 416345884206. Its totient is φ = 114782073120.

The previous prime is 252520561087. The next prime is 252520561129. The reversal of 252520561106 is 601165025252.

It can be written as a sum of positive squares in only one way, i.e., 190274802025 + 62245759081 = 436205^2 + 249491^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 521736455 + ... + 521736938.

Almost surely, 2^252520561106 is an apocalyptic number.

252520561106 is a deficient number, since it is larger than the sum of its proper divisors (163825323100).

252520561106 is a wasteful number, since it uses less digits than its factorization.

252520561106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043473417 (or 1043473406 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 252520561106 its reverse (601165025252), we get a palindrome (853685586358).

The spelling of 252520561106 in words is "two hundred fifty-two billion, five hundred twenty million, five hundred sixty-one thousand, one hundred six".