520922500 has 180 divisors, whose sum is σ = 1396403008. Its totient is φ = 166464000.

The previous prime is 520922489. The next prime is 520922503. The reversal of 520922500 is 5229025.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520922503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 5057449 + ... + 5057551.

Almost surely, 2^520922500 is an apocalyptic number.

520922500 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 520922500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698201504).

520922500 is an abundant number, since it is smaller than the sum of its proper divisors (875480508).

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

520922500 is a wasteful number, since it uses less digits than its factorization.

520922500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168 (or 134 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 520922500 is about 22823.7266895658. The cubic root of 520922500 is about 804.6203989355.

The spelling of 520922500 in words is "five hundred twenty million, nine hundred twenty-two thousand, five hundred".