520785356 has 24 divisors (see below), whose sum is σ = 1121692320. Its totient is φ = 206024832.

The previous prime is 520785329. The next prime is 520785359. The reversal of 520785356 is 653587025.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (520785359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 715001 + ... + 715728.

It is an arithmetic number, because the mean of its divisors is an integer number (46737180).

Almost surely, 2^520785356 is an apocalyptic number.

It is an amenable number.

520785356 is an abundant number, since it is smaller than the sum of its proper divisors (600906964).

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

520785356 is a wasteful number, since it uses less digits than its factorization.

520785356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1430753 (or 1430751 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 41.

The square root of 520785356 is about 22820.7220744656. The cubic root of 520785356 is about 804.5497815562.

The spelling of 520785356 in words is "five hundred twenty million, seven hundred eighty-five thousand, three hundred fifty-six".