282221025 has 24 divisors (see below), whose sum is σ = 475416000. Its totient is φ = 147675840.

The previous prime is 282220969. The next prime is 282221033. The reversal of 282221025 is 520122282.

It is not a de Polignac number, because 282221025 - 2⁸ = 282220769 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 282220986 and 282221004.

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 23 ways as a sum of consecutive naturals, for example, 31525 + ... + 39474.

It is an arithmetic number, because the mean of its divisors is an integer number (19809000).

Almost surely, 2^282221025 is an apocalyptic number.

282221025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

282221025 is a deficient number, since it is larger than the sum of its proper divisors (193194975).

282221025 is a wasteful number, since it uses less digits than its factorization.

282221025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71065 (or 71060 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 24.

The square root of 282221025 is about 16799.4352583651. The cubic root of 282221025 is about 655.9384988757.

The spelling of 282221025 in words is "two hundred eighty-two million, two hundred twenty-one thousand, twenty-five".