5509965 has 16 divisors (see below), whose sum is σ = 8900928. Its totient is φ = 2910336.

The previous prime is 5509939. The next prime is 5509979. The reversal of 5509965 is 5699055.

It is not a de Polignac number, because 5509965 - 2⁸ = 5509709 is a prime.

It is an Ulam number.

It is a congruent 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, 112 + ... + 3321.

It is an arithmetic number, because the mean of its divisors is an integer number (556308).

Almost surely, 2^5509965 is an apocalyptic number.

It is an amenable number.

5509965 is a deficient number, since it is larger than the sum of its proper divisors (3390963).

5509965 is a wasteful number, since it uses less digits than its factorization.

5509965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3548.

The product of its (nonzero) digits is 60750, while the sum is 39.

The square root of 5509965 is about 2347.3314635986. The cubic root of 5509965 is about 176.6239582693.

The spelling of 5509965 in words is "five million, five hundred nine thousand, nine hundred sixty-five".