2506222305 has 12 divisors (see below), whose sum is σ = 4344118740. Its totient is φ = 1336651872.

The previous prime is 2506222259. The next prime is 2506222319. The reversal of 2506222305 is 5032226052.

2506222305 is a `hidden beast` number, since 2 + 5 + 0 + 622 + 2 + 30 + 5 = 666.

2506222305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1783203984 + 723018321 = 42228^2 + 26889^2 .

It is not a de Polignac number, because 2506222305 - 2⁹ = 2506221793 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, 27846870 + ... + 27846959.

It is an arithmetic number, because the mean of its divisors is an integer number (362009895).

Almost surely, 2^2506222305 is an apocalyptic number.

It is an amenable number.

2506222305 is a deficient number, since it is larger than the sum of its proper divisors (1837896435).

2506222305 is a wasteful number, since it uses less digits than its factorization.

2506222305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55693840 (or 55693837 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2506222305 is about 50062.1843810276. The cubic root of 2506222305 is about 1358.3338710358. Note that the first 3 decimals are identical.

Adding to 2506222305 its reverse (5032226052), we get a palindrome (7538448357).

The spelling of 2506222305 in words is "two billion, five hundred six million, two hundred twenty-two thousand, three hundred five".