1812066825 has 12 divisors (see below), whose sum is σ = 2995950608. Its totient is φ = 966435600.

The previous prime is 1812066779. The next prime is 1812066833. The reversal of 1812066825 is 5286602181.

It is not a de Polignac number, because 1812066825 - 2⁹ = 1812066313 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12080371 + ... + 12080520.

Almost surely, 2^1812066825 is an apocalyptic number.

1812066825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1812066825 is a deficient number, since it is larger than the sum of its proper divisors (1183883783).

1812066825 is a wasteful number, since it uses less digits than its factorization.

1812066825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24160904 (or 24160899 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 1812066825 is about 42568.3782284456. The cubic root of 1812066825 is about 1219.1526017697.

The spelling of 1812066825 in words is "one billion, eight hundred twelve million, sixty-six thousand, eight hundred twenty-five".