5204520 has 128 divisors (see below), whose sum is σ = 17856000. Its totient is φ = 1347840.

The previous prime is 5204519. The next prime is 5204527. The reversal of 5204520 is 254025.

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

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 5204493 and 5204502.

It is not an unprimeable number, because it can be changed into a prime (5204527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65841 + ... + 65919.

It is an arithmetic number, because the mean of its divisors is an integer number (139500).

Almost surely, 2^5204520 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 5204520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8928000).

5204520 is an abundant number, since it is smaller than the sum of its proper divisors (12651480).

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

5204520 is a wasteful number, since it uses less digits than its factorization.

5204520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 150 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 5204520 is about 2281.3417104853. The cubic root of 5204520 is about 173.2980039764.

Adding to 5204520 its reverse (254025), we get a palindrome (5458545).

The spelling of 5204520 in words is "five million, two hundred four thousand, five hundred twenty".