5231520 has 192 divisors, whose sum is σ = 21047040. Its totient is φ = 1188864.

The previous prime is 5231503. The next prime is 5231521. The reversal of 5231520 is 251325.

It is a happy number.

5231520 is digitally balanced in base 8, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

5231520 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 5231493 and 5231502.

It is not an unprimeable number, because it can be changed into a prime (5231521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30154 + ... + 30326.

It is an arithmetic number, because the mean of its divisors is an integer number (109620).

Almost surely, 2^5231520 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 5231520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10523520).

5231520 is an abundant number, since it is smaller than the sum of its proper divisors (15815520).

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

5231520 is a wasteful number, since it uses less digits than its factorization.

5231520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 5231520 is about 2287.2516258602. The cubic root of 5231520 is about 173.5971656046.

Adding to 5231520 its reverse (251325), we get a palindrome (5482845).

The spelling of 5231520 in words is "five million, two hundred thirty-one thousand, five hundred twenty".