520425300 has 144 divisors (see below), whose sum is σ = 1596772800. Its totient is φ = 130636800.

The previous prime is 520425293. The next prime is 520425307. The reversal of 520425300 is 3524025.

It is an interprime number because it is at equal distance from previous prime (520425293) and next prime (520425307).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520425307) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 355971 + ... + 357429.

It is an arithmetic number, because the mean of its divisors is an integer number (11088700).

Almost surely, 2^520425300 is an apocalyptic number.

520425300 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 520425300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (798386400).

520425300 is an abundant number, since it is smaller than the sum of its proper divisors (1076347500).

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

520425300 is a wasteful number, since it uses less digits than its factorization.

520425300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1546 (or 1539 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 520425300 is about 22812.8319153936. The cubic root of 520425300 is about 804.3643246253.

Adding to 520425300 its reverse (3524025), we get a palindrome (523949325).

The spelling of 520425300 in words is "five hundred twenty million, four hundred twenty-five thousand, three hundred".