2555447 has 8 divisors (see below), whose sum is σ = 2656896. Its totient is φ = 2455992.

The previous prime is 2555429. The next prime is 2555453. The reversal of 2555447 is 7445552.

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 2555447 - 2⁸ = 2555191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2438 + ... + 3324.

It is an arithmetic number, because the mean of its divisors is an integer number (332112).

2^2555447 is an apocalyptic number.

2555447 is a deficient number, since it is larger than the sum of its proper divisors (101449).

2555447 is an equidigital number, since it uses as much as digits as its factorization.

2555447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 997.

The product of its digits is 28000, while the sum is 32.

The square root of 2555447 is about 1598.5765543132. The cubic root of 2555447 is about 136.7169284361.

The spelling of 2555447 in words is "two million, five hundred fifty-five thousand, four hundred forty-seven".