2555445 has 8 divisors (see below), whose sum is σ = 4088736. Its totient is φ = 1362896.

The previous prime is 2555429. The next prime is 2555453. The reversal of 2555445 is 5445552.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2555445 - 2⁴ = 2555429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85167 + ... + 85196.

It is an arithmetic number, because the mean of its divisors is an integer number (511092).

2^2555445 is an apocalyptic number.

It is an amenable number.

2555445 is a deficient number, since it is larger than the sum of its proper divisors (1533291).

2555445 is a wasteful number, since it uses less digits than its factorization.

2555445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170371.

The product of its digits is 20000, while the sum is 30.

The square root of 2555445 is about 1598.5759287566. The cubic root of 2555445 is about 136.7168927693.

The spelling of 2555445 in words is "two million, five hundred fifty-five thousand, four hundred forty-five".