2549966 has 16 divisors (see below), whose sum is σ = 4161456. Its totient is φ = 1166976.

The previous prime is 2549951. The next prime is 2549993. The reversal of 2549966 is 6699452.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245 + ... + 2271.

It is an arithmetic number, because the mean of its divisors is an integer number (260091).

2^2549966 is an apocalyptic number.

2549966 is a deficient number, since it is larger than the sum of its proper divisors (1611490).

2549966 is a wasteful number, since it uses less digits than its factorization.

2549966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083.

The product of its digits is 116640, while the sum is 41.

The square root of 2549966 is about 1596.8612964187. The cubic root of 2549966 is about 136.6191136033.

The spelling of 2549966 in words is "two million, five hundred forty-nine thousand, nine hundred sixty-six".