1825385216 has 18 divisors (see below), whose sum is σ = 3643640532. Its totient is φ = 912692480.

The previous prime is 1825385213. The next prime is 1825385227. The reversal of 1825385216 is 6125835281.

It is not an unprimeable number, because it can be changed into a prime (1825385213) by changing a digit.

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 as a sum of consecutive naturals, namely, 3564950 + ... + 3565461.

It is an arithmetic number, because the mean of its divisors is an integer number (202424474).

Almost surely, 2^1825385216 is an apocalyptic number.

1825385216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1825385216 is a deficient number, since it is larger than the sum of its proper divisors (1818255316).

1825385216 is an frugal number, since it uses more digits than its factorization.

1825385216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7130427 (or 7130413 counting only the distinct ones).

The product of its digits is 115200, while the sum is 41.

The square root of 1825385216 is about 42724.5271009522. The cubic root of 1825385216 is about 1222.1321704280.

The spelling of 1825385216 in words is "one billion, eight hundred twenty-five million, three hundred eighty-five thousand, two hundred sixteen".