5123520 has 112 divisors (see below), whose sum is σ = 18105120. Its totient is φ = 1363968.

The previous prime is 5123509. The next prime is 5123527. The reversal of 5123520 is 253215.

It is a happy number.

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

It is a d-powerful number, because it can be written as 5² + 1 + 2⁸ + 3¹⁴ + 5⁷ + 2¹⁸ + 0 .

It is a junction number, because it is equal to n+sod(n) for n = 5123493 and 5123502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123527) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8344 + ... + 8936.

Almost surely, 2^5123520 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 5123520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9052560).

5123520 is an abundant number, since it is smaller than the sum of its proper divisors (12981600).

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

5123520 is a wasteful number, since it uses less digits than its factorization.

5123520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619 (or 603 counting only the distinct ones).

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

The square root of 5123520 is about 2263.5193836148. The cubic root of 5123520 is about 172.3942641237.

Adding to 5123520 its reverse (253215), we get a palindrome (5376735).

The spelling of 5123520 in words is "five million, one hundred twenty-three thousand, five hundred twenty".