5645515 has 4 divisors (see below), whose sum is σ = 6774624. Its totient is φ = 4516408.

The previous prime is 5645501. The next prime is 5645539. The reversal of 5645515 is 5155465.

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

It is a cyclic number.

It is not a de Polignac number, because 5645515 - 2⁵ = 5645483 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564547 + ... + 564556.

It is an arithmetic number, because the mean of its divisors is an integer number (1693656).

Almost surely, 2^5645515 is an apocalyptic number.

5645515 is a deficient number, since it is larger than the sum of its proper divisors (1129109).

5645515 is a wasteful number, since it uses less digits than its factorization.

5645515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1129108.

The product of its digits is 15000, while the sum is 31.

The square root of 5645515 is about 2376.0292506617. The cubic root of 5645515 is about 178.0606093310.

The spelling of 5645515 in words is "five million, six hundred forty-five thousand, five hundred fifteen".