252505550249 has 4 divisors (see below), whose sum is σ = 252507100164. Its totient is φ = 252504000336.

The previous prime is 252505550221. The next prime is 252505550263. The reversal of 252505550249 is 942055505252.

252505550249 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 91569786025 + 160935764224 = 302605^2 + 401168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-252505550249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (252505550449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 497462 + ... + 867455.

It is an arithmetic number, because the mean of its divisors is an integer number (63126775041).

Almost surely, 2^252505550249 is an apocalyptic number.

It is an amenable number.

252505550249 is a deficient number, since it is larger than the sum of its proper divisors (1549915).

252505550249 is a wasteful number, since it uses less digits than its factorization.

252505550249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1549914.

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 252505550249 in words is "two hundred fifty-two billion, five hundred five million, five hundred fifty thousand, two hundred forty-nine".