5664540 has 48 divisors (see below), whose sum is σ = 18127872. Its totient is φ = 1294656.

The previous prime is 5664523. The next prime is 5664563. The reversal of 5664540 is 454665.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5664498 and 5664507.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6324 + ... + 7163.

It is an arithmetic number, because the mean of its divisors is an integer number (377664).

Almost surely, 2^5664540 is an apocalyptic number.

It is an amenable number.

5664540 is an abundant number, since it is smaller than the sum of its proper divisors (12463332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5664540 is a wasteful number, since it uses less digits than its factorization.

5664540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13506 (or 13504 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 5664540 is about 2380.0294115830. The cubic root of 5664540 is about 178.2604024335.

The spelling of 5664540 in words is "five million, six hundred sixty-four thousand, five hundred forty".