2555747 has 4 divisors (see below), whose sum is σ = 2690280. Its totient is φ = 2421216.

The previous prime is 2555731. The next prime is 2555753. The reversal of 2555747 is 7475552.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2555747 - 2⁴ = 2555731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2555767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67238 + ... + 67275.

It is an arithmetic number, because the mean of its divisors is an integer number (672570).

2^2555747 is an apocalyptic number.

2555747 is a deficient number, since it is larger than the sum of its proper divisors (134533).

2555747 is a wasteful number, since it uses less digits than its factorization.

2555747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134532.

The product of its digits is 49000, while the sum is 35.

The square root of 2555747 is about 1598.6703850388. The cubic root of 2555747 is about 136.7222782469.

The spelling of 2555747 in words is "two million, five hundred fifty-five thousand, seven hundred forty-seven".