285250856080 has 20 divisors (see below), whose sum is σ = 663208240572. Its totient is φ = 114100342400.

The previous prime is 285250856053. The next prime is 285250856087. The reversal of 285250856080 is 80658052582.

It can be written as a sum of positive squares in 2 ways, for example, as 224433377536 + 60817478544 = 473744^2 + 246612^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (285250856087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1782817771 + ... + 1782817930.

Almost surely, 2^285250856080 is an apocalyptic number.

285250856080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

285250856080 is an abundant number, since it is smaller than the sum of its proper divisors (377957384492).

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

285250856080 is a wasteful number, since it uses less digits than its factorization.

285250856080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3565635714 (or 3565635708 counting only the distinct ones).

The product of its (nonzero) digits is 1536000, while the sum is 49.

The spelling of 285250856080 in words is "two hundred eighty-five billion, two hundred fifty million, eight hundred fifty-six thousand, eighty".