2566155 has 8 divisors (see below), whose sum is σ = 4105872. Its totient is φ = 1368608.

The previous prime is 2566141. The next prime is 2566163. The reversal of 2566155 is 5516652.

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

It is a cyclic number.

It is not a de Polignac number, because 2566155 - 2⁴ = 2566139 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85524 + ... + 85553.

It is an arithmetic number, because the mean of its divisors is an integer number (513234).

2^2566155 is an apocalyptic number.

2566155 is a deficient number, since it is larger than the sum of its proper divisors (1539717).

2566155 is a wasteful number, since it uses less digits than its factorization.

2566155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171085.

The product of its digits is 9000, while the sum is 30.

The square root of 2566155 is about 1601.9222827591. The cubic root of 2566155 is about 136.9076223821.

The spelling of 2566155 in words is "two million, five hundred sixty-six thousand, one hundred fifty-five".