520785941 has 16 divisors (see below), whose sum is σ = 586153344. Its totient is φ = 459100224.

The previous prime is 520785931. The next prime is 520785959. The reversal of 520785941 is 149587025.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520785941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520785911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297230 + ... + 298976.

It is an arithmetic number, because the mean of its divisors is an integer number (36634584).

Almost surely, 2^520785941 is an apocalyptic number.

It is an amenable number.

520785941 is a deficient number, since it is larger than the sum of its proper divisors (65367403).

520785941 is a wasteful number, since it uses less digits than its factorization.

520785941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2780.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 520785941 is about 22820.7348917602. The cubic root of 520785941 is about 804.5500828073.

The spelling of 520785941 in words is "five hundred twenty million, seven hundred eighty-five thousand, nine hundred forty-one".