249097652 has 18 divisors (see below), whose sum is σ = 439902918. Its totient is φ = 123421312.

The previous prime is 249097643. The next prime is 249097687. The reversal of 249097652 is 256790942.

It can be written as a sum of positive squares in 3 ways, for example, as 33477796 + 215619856 = 5786^2 + 14684^2 .

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 48638 + ... + 53514.

It is an arithmetic number, because the mean of its divisors is an integer number (24439051).

Almost surely, 2^249097652 is an apocalyptic number.

It is an amenable number.

249097652 is a deficient number, since it is larger than the sum of its proper divisors (190805266).

249097652 is a wasteful number, since it uses less digits than its factorization.

249097652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5107 (or 4992 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 249097652 is about 15782.8277567741. The cubic root of 249097652 is about 629.2016864055.

The spelling of 249097652 in words is "two hundred forty-nine million, ninety-seven thousand, six hundred fifty-two".