249556896 has 48 divisors (see below), whose sum is σ = 727876800. Its totient is φ = 83185344.

The previous prime is 249556859. The next prime is 249556903. The reversal of 249556896 is 698655942.

It is a happy number.

249556896 is a `hidden beast` number, since 2 + 4 + 9 + 556 + 89 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 143556 + ... + 145283.

It is an arithmetic number, because the mean of its divisors is an integer number (15164100).

Almost surely, 2^249556896 is an apocalyptic number.

It is an amenable number.

249556896 is an abundant number, since it is smaller than the sum of its proper divisors (478319904).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

249556896 is a wasteful number, since it uses less digits than its factorization.

249556896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288858 (or 288844 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 54.

The square root of 249556896 is about 15797.3699076777. The cubic root of 249556896 is about 629.5881208044.

The spelling of 249556896 in words is "two hundred forty-nine million, five hundred fifty-six thousand, eight hundred ninety-six".