520920000 has 210 divisors, whose sum is σ = 1867096088. Its totient is φ = 138816000.

The previous prime is 520919969. The next prime is 520920007. The reversal of 520920000 is 29025.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520920007) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 359277 + ... + 360723.

Almost surely, 2^520920000 is an apocalyptic number.

520920000 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 520920000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (933548044).

520920000 is an abundant number, since it is smaller than the sum of its proper divisors (1346176088).

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

520920000 is a wasteful number, since it uses less digits than its factorization.

520920000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1485 (or 1457 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 520920000 is about 22823.6719219323. The cubic root of 520920000 is about 804.6191117612.

Adding to 520920000 its reverse (29025), we get a palindrome (520949025).

The spelling of 520920000 in words is "five hundred twenty million, nine hundred twenty thousand".