53104520 has 64 divisors (see below), whose sum is σ = 138153600. Its totient is φ = 17994240.

The previous prime is 53104489. The next prime is 53104531. The reversal of 53104520 is 2540135.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 53104492 and 53104501.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23855 + ... + 25985.

It is an arithmetic number, because the mean of its divisors is an integer number (2158650).

Almost surely, 2^53104520 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 53104520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69076800).

53104520 is an abundant number, since it is smaller than the sum of its proper divisors (85049080).

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

53104520 is a wasteful number, since it uses less digits than its factorization.

53104520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238 (or 2234 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 53104520 is about 7287.2848167201. The cubic root of 53104520 is about 375.8753359164.

Adding to 53104520 its reverse (2540135), we get a palindrome (55644655).

The spelling of 53104520 in words is "fifty-three million, one hundred four thousand, five hundred twenty".