2720255 has 8 divisors (see below), whose sum is σ = 3456432. Its totient is φ = 2048128.

The previous prime is 2720251. The next prime is 2720269. The reversal of 2720255 is 5520272.

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 2720255 - 2² = 2720251 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2720255.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2720251) by changing a digit.

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, 15917 + ... + 16086.

It is an arithmetic number, because the mean of its divisors is an integer number (432054).

2^2720255 is an apocalyptic number.

2720255 is a deficient number, since it is larger than the sum of its proper divisors (736177).

2720255 is a wasteful number, since it uses less digits than its factorization.

2720255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32025.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 2720255 is about 1649.3195566657. The cubic root of 2720255 is about 139.5950030094.

Adding to 2720255 its sum of digits (23), we get a triangular number (2720278 = T₂₃₃₂).

The spelling of 2720255 in words is "two million, seven hundred twenty thousand, two hundred fifty-five".