5580405 has 24 divisors (see below), whose sum is σ = 9729720. Its totient is φ = 2958720.

The previous prime is 5580401. The next prime is 5580409. The reversal of 5580405 is 5040855.

It is an interprime number because it is at equal distance from previous prime (5580401) and next prime (5580409).

It can be written as a sum of positive squares in 4 ways, for example, as 6084 + 5574321 = 78^2 + 2361^2 .

It is not a de Polignac number, because 5580405 - 2² = 5580401 is a prime.

It is a super-2 number, since 2×5580405² = 62281839928050, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5580401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11875 + ... + 12335.

It is an arithmetic number, because the mean of its divisors is an integer number (405405).

Almost surely, 2^5580405 is an apocalyptic number.

It is an amenable number.

5580405 is a deficient number, since it is larger than the sum of its proper divisors (4149315).

5580405 is a wasteful number, since it uses less digits than its factorization.

5580405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741 (or 738 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

The square root of 5580405 is about 2362.2880857338. The cubic root of 5580405 is about 177.3734335449.

The spelling of 5580405 in words is "five million, five hundred eighty thousand, four hundred five".