2811117225 has 24 divisors (see below), whose sum is σ = 5311673920. Its totient is φ = 1285081920.

The previous prime is 2811117193. The next prime is 2811117259. The reversal of 2811117225 is 5227111182.

It is not a de Polignac number, because 2811117225 - 2⁵ = 2811117193 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2811117192 and 2811117201.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2676730 + ... + 2677779.

Almost surely, 2^2811117225 is an apocalyptic number.

2811117225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2811117225 is a deficient number, since it is larger than the sum of its proper divisors (2500556695).

2811117225 is a wasteful number, since it uses less digits than its factorization.

2811117225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5354529 (or 5354524 counting only the distinct ones).

The product of its digits is 2240, while the sum is 30.

The square root of 2811117225 is about 53019.9700584600. The cubic root of 2811117225 is about 1411.3226736493.

The spelling of 2811117225 in words is "two billion, eight hundred eleven million, one hundred seventeen thousand, two hundred twenty-five".