2585555 has 16 divisors (see below), whose sum is σ = 3661824. Its totient is φ = 1715040.

The previous prime is 2585549. The next prime is 2585579. The reversal of 2585555 is 5555852.

It is a happy number.

It is not a de Polignac number, because 2585555 - 2⁶ = 2585491 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107 + ... + 2276.

It is an arithmetic number, because the mean of its divisors is an integer number (228864).

2^2585555 is an apocalyptic number.

2585555 is a deficient number, since it is larger than the sum of its proper divisors (1076269).

2585555 is a wasteful number, since it uses less digits than its factorization.

2585555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2426.

The product of its digits is 50000, while the sum is 35.

The square root of 2585555 is about 1607.9661066080. The cubic root of 2585555 is about 137.2517614734.

The spelling of 2585555 in words is "two million, five hundred eighty-five thousand, five hundred fifty-five".