2666051 has 2 divisors, whose sum is σ = 2666052. Its totient is φ = 2666050.

The previous prime is 2666039. The next prime is 2666071. The reversal of 2666051 is 1506662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2666051 - 2¹⁰ = 2665027 is a prime.

It is a Chen prime.

It is equal to p₁₉₄₃₆₃ and since 2666051 and 194363 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2666051.

It is not a weakly prime, because it can be changed into another prime (2666021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333025 + 1333026.

It is an arithmetic number, because the mean of its divisors is an integer number (1333026).

2^2666051 is an apocalyptic number.

2666051 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666051 is an equidigital number, since it uses as much as digits as its factorization.

2666051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 2666051 is about 1632.8046423256. The cubic root of 2666051 is about 138.6615820631.

The spelling of 2666051 in words is "two million, six hundred sixty-six thousand, fifty-one".