2508866 has 4 divisors (see below), whose sum is σ = 3763302. Its totient is φ = 1254432.

The previous prime is 2508833. The next prime is 2508871. The reversal of 2508866 is 6688052.

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

It can be written as a sum of positive squares in only one way, i.e., 2493241 + 15625 = 1579^2 + 125^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 627215 + ... + 627218.

2^2508866 is an apocalyptic number.

2508866 is a deficient number, since it is larger than the sum of its proper divisors (1254436).

2508866 is a wasteful number, since it uses less digits than its factorization.

2508866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254435.

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 2508866 is about 1583.9400241171. The cubic root of 2508866 is about 135.8811317181.

The spelling of 2508866 in words is "two million, five hundred eight thousand, eight hundred sixty-six".