2661055 has 8 divisors (see below), whose sum is σ = 3267792. Its totient is φ = 2079168.

The previous prime is 2661013. The next prime is 2661067. The reversal of 2661055 is 5501662.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2661055 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 5974 + ... + 6403.

It is an arithmetic number, because the mean of its divisors is an integer number (408474).

2^2661055 is an apocalyptic number.

2661055 is a deficient number, since it is larger than the sum of its proper divisors (606737).

2661055 is a wasteful number, since it uses less digits than its factorization.

2661055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12425.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 2661055 is about 1631.2740419684. The cubic root of 2661055 is about 138.5749137486.

The spelling of 2661055 in words is "two million, six hundred sixty-one thousand, fifty-five".