2205564251 has 16 divisors (see below), whose sum is σ = 2574240000. Its totient is φ = 1868378400.

The previous prime is 2205564227. The next prime is 2205564281. The reversal of 2205564251 is 1524655022.

It is a cyclic number.

It is not a de Polignac number, because 2205564251 - 2⁶ = 2205564187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205564211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73751 + ... + 99248.

It is an arithmetic number, because the mean of its divisors is an integer number (160890000).

Almost surely, 2^2205564251 is an apocalyptic number.

2205564251 is a deficient number, since it is larger than the sum of its proper divisors (368675749).

2205564251 is a wasteful number, since it uses less digits than its factorization.

2205564251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173090.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2205564251 is about 46963.4352555262. The cubic root of 2205564251 is about 1301.6870111977.

The spelling of 2205564251 in words is "two billion, two hundred five million, five hundred sixty-four thousand, two hundred fifty-one".