250464640085 has 16 divisors (see below), whose sum is σ = 328206012480. Its totient is φ = 181975530240.

The previous prime is 250464640081. The next prime is 250464640109. The reversal of 250464640085 is 580046464052.

250464640085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 250464640085 - 2² = 250464640081 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (250464640081) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2201147 + ... + 2312136.

It is an arithmetic number, because the mean of its divisors is an integer number (20512875780).

Almost surely, 2^250464640085 is an apocalyptic number.

It is an amenable number.

250464640085 is a deficient number, since it is larger than the sum of its proper divisors (77741372395).

250464640085 is a wasteful number, since it uses less digits than its factorization.

250464640085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4514308.

The product of its (nonzero) digits is 921600, while the sum is 44.

The spelling of 250464640085 in words is "two hundred fifty billion, four hundred sixty-four million, six hundred forty thousand, eighty-five".