2277391825 has 12 divisors (see below), whose sum is σ = 2990082060. Its totient is φ = 1714741760.

The previous prime is 2277391789. The next prime is 2277391829. The reversal of 2277391825 is 5281937722.

It can be written as a sum of positive squares in 6 ways, for example, as 266048721 + 2011343104 = 16311^2 + 44848^2 .

It is not a de Polignac number, because 2277391825 - 2⁹ = 2277391313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2277391829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2678860 + ... + 2679709.

It is an arithmetic number, because the mean of its divisors is an integer number (249173505).

Almost surely, 2^2277391825 is an apocalyptic number.

2277391825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2277391825 is a deficient number, since it is larger than the sum of its proper divisors (712690235).

2277391825 is a wasteful number, since it uses less digits than its factorization.

2277391825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5358596 (or 5358591 counting only the distinct ones).

The product of its digits is 423360, while the sum is 46.

The square root of 2277391825 is about 47722.0266229338. The cubic root of 2277391825 is about 1315.6668103947. Note that the first 3 decimals are identical.

The spelling of 2277391825 in words is "two billion, two hundred seventy-seven million, three hundred ninety-one thousand, eight hundred twenty-five".