2655521 has 8 divisors (see below), whose sum is σ = 2937504. Its totient is φ = 2380320.

The previous prime is 2655517. The next prime is 2655539. The reversal of 2655521 is 1255562.

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 2655521 - 2² = 2655517 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2655571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 851 + ... + 2456.

It is an arithmetic number, because the mean of its divisors is an integer number (367188).

2^2655521 is an apocalyptic number.

It is an amenable number.

2655521 is a deficient number, since it is larger than the sum of its proper divisors (281983).

2655521 is a wasteful number, since it uses less digits than its factorization.

2655521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3391.

The product of its digits is 3000, while the sum is 26.

The square root of 2655521 is about 1629.5769389630. The cubic root of 2655521 is about 138.4787857354.

The spelling of 2655521 in words is "two million, six hundred fifty-five thousand, five hundred twenty-one".