249568064 has 28 divisors (see below), whose sum is σ = 497153184. Its totient is φ = 124301184.

The previous prime is 249568063. The next prime is 249568117. The reversal of 249568064 is 460865942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (249568061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9419 + ... + 24245.

Almost surely, 2^249568064 is an apocalyptic number.

It is an amenable number.

249568064 is a deficient number, since it is larger than the sum of its proper divisors (247585120).

249568064 is a wasteful number, since it uses less digits than its factorization.

249568064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15102 (or 15092 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 249568064 is about 15797.7233802849. The cubic root of 249568064 is about 629.5975122971.

The spelling of 249568064 in words is "two hundred forty-nine million, five hundred sixty-eight thousand, sixty-four".