2552666 has 8 divisors (see below), whose sum is σ = 3858624. Its totient is φ = 1266460.

The previous prime is 2552659. The next prime is 2552677. The reversal of 2552666 is 6662552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×2552666² = 13032207415112, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁴ + 5⁶ + 5⁸ + 2²¹ + 6⁴ + 6⁴ + 6⁶ .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4610 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (482328).

2^2552666 is an apocalyptic number.

2552666 is a deficient number, since it is larger than the sum of its proper divisors (1305958).

2552666 is a wasteful number, since it uses less digits than its factorization.

2552666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9876.

The product of its digits is 21600, while the sum is 32.

The square root of 2552666 is about 1597.7064811786. The cubic root of 2552666 is about 136.6673157481.

The spelling of 2552666 in words is "two million, five hundred fifty-two thousand, six hundred sixty-six".