520601650 has 24 divisors (see below), whose sum is σ = 969406704. Its totient is φ = 208006800.

The previous prime is 520601621. The next prime is 520601651. The reversal of 520601650 is 56106025.

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

It is not an unprimeable number, because it can be changed into a prime (520601651) 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 11 ways as a sum of consecutive naturals, for example, 43189 + ... + 53911.

It is an arithmetic number, because the mean of its divisors is an integer number (40391946).

Almost surely, 2^520601650 is an apocalyptic number.

520601650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

520601650 is a deficient number, since it is larger than the sum of its proper divisors (448805054).

520601650 is a wasteful number, since it uses less digits than its factorization.

520601650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11706 (or 11701 counting only the distinct ones).

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

The square root of 520601650 is about 22816.6967372580. The cubic root of 520601650 is about 804.4551693180.

Adding to 520601650 its reverse (56106025), we get a palindrome (576707675).

The spelling of 520601650 in words is "five hundred twenty million, six hundred one thousand, six hundred fifty".