5540165 has 12 divisors (see below), whose sum is σ = 6875532. Its totient is φ = 4285440.

The previous prime is 5540141. The next prime is 5540173. The reversal of 5540165 is 5610455.

It can be written as a sum of positive squares in 2 ways, for example, as 3232804 + 2307361 = 1798^2 + 1519^2 .

It is a de Polignac number, because none of the positive numbers 2^k-5540165 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4229 + ... + 5381.

It is an arithmetic number, because the mean of its divisors is an integer number (572961).

Almost surely, 2^5540165 is an apocalyptic number.

5540165 is the 1922-nd pentagonal number.

It is an amenable number.

5540165 is a deficient number, since it is larger than the sum of its proper divisors (1335367).

5540165 is a wasteful number, since it uses less digits than its factorization.

5540165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1220 (or 1189 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 5540165 is about 2353.7555098183. The cubic root of 5540165 is about 176.9460612135.

The spelling of 5540165 in words is "five million, five hundred forty thousand, one hundred sixty-five".