249863185361252 has 12 divisors (see below), whose sum is σ = 438384637558140. Its totient is φ = 124610431773216.

The previous prime is 249863185361219. The next prime is 249863185361359. The reversal of 249863185361252 is 252163581368942.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39999983298916 + 209863202062336 = 6324554^2 + 14486656^2 .

It is a super-4 number, since 4×249863185361252⁴ (a number of 59 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (65) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80290225103 + ... + 80290228214.

It is an arithmetic number, because the mean of its divisors is an integer number (36532053129845).

Almost surely, 2^{249863185361252} is an apocalyptic number.

It is an amenable number.

249863185361252 is a deficient number, since it is larger than the sum of its proper divisors (188521452196888).

249863185361252 is a wasteful number, since it uses less digits than its factorization.

249863185361252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160580453710 (or 160580453708 counting only the distinct ones).

The product of its digits is 149299200, while the sum is 65.

The spelling of 249863185361252 in words is "two hundred forty-nine trillion, eight hundred sixty-three billion, one hundred eighty-five million, three hundred sixty-one thousand, two hundred fifty-two".