5645555 has 4 divisors (see below), whose sum is σ = 6774672. Its totient is φ = 4516440.

The previous prime is 5645551. The next prime is 5645569. The reversal of 5645555 is 5555465.

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

It is not a de Polignac number, because 5645555 - 2² = 5645551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5645551) 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, 564551 + ... + 564560.

It is an arithmetic number, because the mean of its divisors is an integer number (1693668).

Almost surely, 2^5645555 is an apocalyptic number.

5645555 is a deficient number, since it is larger than the sum of its proper divisors (1129117).

5645555 is a wasteful number, since it uses less digits than its factorization.

5645555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129116.

The product of its digits is 75000, while the sum is 35.

The square root of 5645555 is about 2376.0376680516. The cubic root of 5645555 is about 178.0610298659.

The spelling of 5645555 in words is "five million, six hundred forty-five thousand, five hundred fifty-five".