250804864 has 64 divisors (see below), whose sum is σ = 529257600. Its totient is φ = 118056960.

The previous prime is 250804843. The next prime is 250804867. The reversal of 250804864 is 468408052.

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (250804867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683209 + ... + 683575.

It is an arithmetic number, because the mean of its divisors is an integer number (8269650).

Almost surely, 2^250804864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 250804864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (264628800).

250804864 is an abundant number, since it is smaller than the sum of its proper divisors (278452736).

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

250804864 is a wasteful number, since it uses less digits than its factorization.

250804864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681 (or 669 counting only the distinct ones).

The product of its (nonzero) digits is 61440, while the sum is 37.

The square root of 250804864 is about 15836.8198827921. The cubic root of 250804864 is about 630.6358441422.

The spelling of 250804864 in words is "two hundred fifty million, eight hundred four thousand, eight hundred sixty-four".