249505252 has 12 divisors (see below), whose sum is σ = 438179056. Its totient is φ = 124311240.

The previous prime is 249505237. The next prime is 249505279. The reversal of 249505252 is 252505942.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109074 + ... + 111337.

Almost surely, 2^249505252 is an apocalyptic number.

It is an amenable number.

249505252 is a deficient number, since it is larger than the sum of its proper divisors (188673804).

249505252 is a wasteful number, since it uses less digits than its factorization.

249505252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220698 (or 220696 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The square root of 249505252 is about 15795.7352472115. The cubic root of 249505252 is about 629.5446882344.

The spelling of 249505252 in words is "two hundred forty-nine million, five hundred five thousand, two hundred fifty-two".