5641520 has 40 divisors (see below), whose sum is σ = 13269984. Its totient is φ = 2230272.

The previous prime is 5641459. The next prime is 5641529. The reversal of 5641520 is 251465.

It is a tau number, because it is divible by the number of its divisors (40).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5641529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7397 + ... + 8123.

Almost surely, 2^5641520 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5641520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6634992).

5641520 is an abundant number, since it is smaller than the sum of its proper divisors (7628464).

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

5641520 is a wasteful number, since it uses less digits than its factorization.

5641520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837 (or 831 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 5641520 is about 2375.1884135790. The cubic root of 5641520 is about 178.0185984017.

Adding to 5641520 its reverse (251465), we get a palindrome (5892985).

The spelling of 5641520 in words is "five million, six hundred forty-one thousand, five hundred twenty".