1812252956225 has 12 divisors (see below), whose sum is σ = 2258486102400. Its totient is φ = 1442516922000.

The previous prime is 1812252956209. The next prime is 1812252956231. The reversal of 1812252956225 is 5226592522181.

It is not a de Polignac number, because 1812252956225 - 2⁴ = 1812252956209 is a prime.

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, 182131001 + ... + 182140950.

It is an arithmetic number, because the mean of its divisors is an integer number (188207175200).

Almost surely, 2^{1812252956225} is an apocalyptic number.

It is an amenable number.

1812252956225 is a deficient number, since it is larger than the sum of its proper divisors (446233146175).

1812252956225 is a wasteful number, since it uses less digits than its factorization.

1812252956225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364272160 (or 364272155 counting only the distinct ones).

The product of its digits is 1728000, while the sum is 50.

The spelling of 1812252956225 in words is "one trillion, eight hundred twelve billion, two hundred fifty-two million, nine hundred fifty-six thousand, two hundred twenty-five".