2206551 has 16 divisors (see below), whose sum is σ = 3108096. Its totient is φ = 1389696.

The previous prime is 2206543. The next prime is 2206559. The reversal of 2206551 is 1556022.

It is an interprime number because it is at equal distance from previous prime (2206543) and next prime (2206559).

It is not a de Polignac number, because 2206551 - 2³ = 2206543 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2206559) 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, 7656 + ... + 7938.

It is an arithmetic number, because the mean of its divisors is an integer number (194256).

2^2206551 is an apocalyptic number.

2206551 is a deficient number, since it is larger than the sum of its proper divisors (901545).

2206551 is a wasteful number, since it uses less digits than its factorization.

2206551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422.

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 2206551 is about 1485.4463975519. The cubic root of 2206551 is about 130.1881103156.

The spelling of 2206551 in words is "two million, two hundred six thousand, five hundred fifty-one".