2555517 has 4 divisors (see below), whose sum is σ = 3407360. Its totient is φ = 1703676.

The previous prime is 2555477. The next prime is 2555521. The reversal of 2555517 is 7155552.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2555517 - 2⁶ = 2555453 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2555587) 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, 425917 + ... + 425922.

It is an arithmetic number, because the mean of its divisors is an integer number (851840).

2^2555517 is an apocalyptic number.

It is an amenable number.

2555517 is a deficient number, since it is larger than the sum of its proper divisors (851843).

2555517 is an equidigital number, since it uses as much as digits as its factorization.

2555517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851842.

The product of its digits is 8750, while the sum is 30.

The square root of 2555517 is about 1598.5984486418. The cubic root of 2555517 is about 136.7181767628.

The spelling of 2555517 in words is "two million, five hundred fifty-five thousand, five hundred seventeen".