2555887 has 4 divisors (see below), whose sum is σ = 2588320. Its totient is φ = 2523456.

The previous prime is 2555881. The next prime is 2555893. The reversal of 2555887 is 7885552.

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

It is an interprime number because it is at equal distance from previous prime (2555881) and next prime (2555893).

It is a cyclic number.

It is not a de Polignac number, because 2555887 - 2¹⁹ = 2031599 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 (2555881) 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, 16098 + ... + 16255.

It is an arithmetic number, because the mean of its divisors is an integer number (647080).

2^2555887 is an apocalyptic number.

2555887 is a deficient number, since it is larger than the sum of its proper divisors (32433).

2555887 is an equidigital number, since it uses as much as digits as its factorization.

2555887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32432.

The product of its digits is 112000, while the sum is 40.

The square root of 2555887 is about 1598.7141708260. The cubic root of 2555887 is about 136.7247746820.

The spelling of 2555887 in words is "two million, five hundred fifty-five thousand, eight hundred eighty-seven".