5521865 has 4 divisors (see below), whose sum is σ = 6626244. Its totient is φ = 4417488.

The previous prime is 5521819. The next prime is 5521891. The reversal of 5521865 is 5681255.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2253001 + 3268864 = 1501^2 + 1808^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521865 - 2⁶ = 5521801 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552182 + ... + 552191.

It is an arithmetic number, because the mean of its divisors is an integer number (1656561).

Almost surely, 2^5521865 is an apocalyptic number.

It is an amenable number.

5521865 is a deficient number, since it is larger than the sum of its proper divisors (1104379).

5521865 is a wasteful number, since it uses less digits than its factorization.

5521865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104378.

The product of its digits is 12000, while the sum is 32.

The square root of 5521865 is about 2349.8648897330. The cubic root of 5521865 is about 176.7510198021.

The spelling of 5521865 in words is "five million, five hundred twenty-one thousand, eight hundred sixty-five".