2666533 has 4 divisors (see below), whose sum is σ = 2706400. Its totient is φ = 2626668.

The previous prime is 2666519. The next prime is 2666537. The reversal of 2666533 is 3356662.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3356662 = 2 ⋅1678331.

It is not a de Polignac number, because 2666533 - 2⁹ = 2666021 is a prime.

It is a super-2 number, since 2×2666533² = 14220796480178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2666495 and 2666504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2666537) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19833 + ... + 19966.

It is an arithmetic number, because the mean of its divisors is an integer number (676600).

2^2666533 is an apocalyptic number.

It is an amenable number.

2666533 is a deficient number, since it is larger than the sum of its proper divisors (39867).

2666533 is an equidigital number, since it uses as much as digits as its factorization.

2666533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39866.

The product of its digits is 19440, while the sum is 31.

The square root of 2666533 is about 1632.9522344515. The cubic root of 2666533 is about 138.6699378492.

The spelling of 2666533 in words is "two million, six hundred sixty-six thousand, five hundred thirty-three".