1825281856 has 14 divisors (see below), whose sum is σ = 3622043810. Its totient is φ = 912640896.

The previous prime is 1825281847. The next prime is 1825281859. The reversal of 1825281856 is 6581825281.

It can be written as a sum of positive squares in only one way, i.e., 1737222400 + 88059456 = 41680^2 + 9384^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1825281859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14259951 + ... + 14260078.

It is an arithmetic number, because the mean of its divisors is an integer number (258717415).

Almost surely, 2^1825281856 is an apocalyptic number.

1825281856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1825281856 is a deficient number, since it is larger than the sum of its proper divisors (1796761954).

1825281856 is an equidigital number, since it uses as much as digits as its factorization.

1825281856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28520041 (or 28520031 counting only the distinct ones).

The product of its digits is 307200, while the sum is 46.

The square root of 1825281856 is about 42723.3174741850. The cubic root of 1825281856 is about 1222.1091027920.

The spelling of 1825281856 in words is "one billion, eight hundred twenty-five million, two hundred eighty-one thousand, eight hundred fifty-six".