5645520 has 60 divisors (see below), whose sum is σ = 18961956. Its totient is φ = 1505280.

The previous prime is 5645501. The next prime is 5645539. The reversal of 5645520 is 255465.

It is an interprime number because it is at equal distance from previous prime (5645501) and next prime (5645539).

It can be written as a sum of positive squares in 2 ways, for example, as 2005056 + 3640464 = 1416^2 + 1908^2 .

It is a tau number, because it is divible by the number of its divisors (60).

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, 3201 + ... + 4640.

Almost surely, 2^5645520 is an apocalyptic number.

It is an amenable number.

5645520 is an abundant number, since it is smaller than the sum of its proper divisors (13316436).

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

5645520 is a wasteful number, since it uses less digits than its factorization.

5645520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7860 (or 7851 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 5645520 is about 2376.0303028371. The cubic root of 5645520 is about 178.0606618980.

It can be divided in two parts, 564 and 5520, that added together give a square (6084 = 78²).

The spelling of 5645520 in words is "five million, six hundred forty-five thousand, five hundred twenty".