2205685427 has 4 divisors (see below), whose sum is σ = 2406202296. Its totient is φ = 2005168560.

The previous prime is 2205685411. The next prime is 2205685429. The reversal of 2205685427 is 7245865022.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2205685427 - 2⁴ = 2205685411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2205685429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100258418 + ... + 100258439.

It is an arithmetic number, because the mean of its divisors is an integer number (601550574).

Almost surely, 2^2205685427 is an apocalyptic number.

2205685427 is a deficient number, since it is larger than the sum of its proper divisors (200516869).

2205685427 is a wasteful number, since it uses less digits than its factorization.

2205685427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200516868.

The product of its (nonzero) digits is 268800, while the sum is 41.

The square root of 2205685427 is about 46964.7253478608. The cubic root of 2205685427 is about 1301.7108494417.

The spelling of 2205685427 in words is "two billion, two hundred five million, six hundred eighty-five thousand, four hundred twenty-seven".