2500966 has 16 divisors (see below), whose sum is σ = 4135824. Its totient is φ = 1126944.

The previous prime is 2500961. The next prime is 2500969. The reversal of 2500966 is 6690052.

2500966 is a nontrivial binomial coefficient, being equal to C(2237, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2500961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1 + ... + 2236.

It is an arithmetic number, because the mean of its divisors is an integer number (258489).

2^2500966 is an apocalyptic number.

2500966 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

2500966 is the 2236-th triangular number.

2500966 is the 746-th centered nonagonal number.

2500966 is a deficient number, since it is larger than the sum of its proper divisors (1634858).

2500966 is a wasteful number, since it uses less digits than its factorization.

2500966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2295.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2500966 is about 1581.4442766029. Note that the first 3 decimals coincide. The cubic root of 2500966 is about 135.7383594281.

The spelling of 2500966 in words is "two million, five hundred thousand, nine hundred sixty-six".