2555505 has 24 divisors (see below), whose sum is σ = 4478760. Its totient is φ = 1347840.

The previous prime is 2555477. The next prime is 2555521. The reversal of 2555505 is 5055552.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 242064 + 2313441 = 492^2 + 1521^2 .

It is not a de Polignac number, because 2555505 - 2¹⁰ = 2554481 is a prime.

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4645 + ... + 5165.

It is an arithmetic number, because the mean of its divisors is an integer number (186615).

2^2555505 is an apocalyptic number.

It is an amenable number.

2555505 is a deficient number, since it is larger than the sum of its proper divisors (1923255).

2555505 is a wasteful number, since it uses less digits than its factorization.

2555505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 638 counting only the distinct ones).

The product of its (nonzero) digits is 6250, while the sum is 27.

The square root of 2555505 is about 1598.5946953496. The cubic root of 2555505 is about 136.7179627655.

The spelling of 2555505 in words is "two million, five hundred fifty-five thousand, five hundred five".