2666725 has 6 divisors (see below), whose sum is σ = 3306770. Its totient is φ = 2133360.

The previous prime is 2666717. The next prime is 2666743. The reversal of 2666725 is 5276662.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 36 + 2666689 = 6^2 + 1633^2 .

It is not a de Polignac number, because 2666725 - 2³ = 2666717 is a prime.

It is a super-2 number, since 2×2666725² = 14222844451250, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 53310 + ... + 53359.

2^2666725 is an apocalyptic number.

2666725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2666725 is a deficient number, since it is larger than the sum of its proper divisors (640045).

2666725 is a wasteful number, since it uses less digits than its factorization.

2666725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106679 (or 106674 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The square root of 2666725 is about 1633.0110226205. The cubic root of 2666725 is about 138.6732660146.

The spelling of 2666725 in words is "two million, six hundred sixty-six thousand, seven hundred twenty-five".