285121825024 has 81 divisors (see below), whose sum is σ = 595360841299. Its totient is φ = 136268633600.

The previous prime is 285121825007. The next prime is 285121825033. The reversal of 285121825024 is 420528121582.

The square root of 285121825024 is 533968.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 196499499 + ... + 196500949.

Almost surely, 2^285121825024 is an apocalyptic number.

285121825024 is the 533968-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 285121825024

285121825024 is an abundant number, since it is smaller than the sum of its proper divisors (310239016275).

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

285121825024 is an frugal number, since it uses more digits than its factorization.

285121825024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2964 (or 1476 counting only the distinct ones).

The product of its (nonzero) digits is 102400, while the sum is 40.

The spelling of 285121825024 in words is "two hundred eighty-five billion, one hundred twenty-one million, eight hundred twenty-five thousand, twenty-four".