520447650 has 48 divisors (see below), whose sum is σ = 1292220864. Its totient is φ = 138623680.

The previous prime is 520447649. The next prime is 520447693. The reversal of 520447650 is 56744025.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 182032 + ... + 184868.

It is an arithmetic number, because the mean of its divisors is an integer number (26921268).

Almost surely, 2^520447650 is an apocalyptic number.

520447650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

520447650 is an abundant number, since it is smaller than the sum of its proper divisors (771773214).

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

520447650 is a wasteful number, since it uses less digits than its factorization.

520447650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4075 (or 4070 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The square root of 520447650 is about 22813.3217660208. The cubic root of 520447650 is about 804.3758391086.

The spelling of 520447650 in words is "five hundred twenty million, four hundred forty-seven thousand, six hundred fifty".