520881243 has 16 divisors (see below), whose sum is σ = 707477760. Its totient is φ = 340829856.

The previous prime is 520881239. The next prime is 520881259. The reversal of 520881243 is 342188025.

It is not a de Polignac number, because 520881243 - 2² = 520881239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520881223) 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 15 ways as a sum of consecutive naturals, for example, 27546 + ... + 42432.

It is an arithmetic number, because the mean of its divisors is an integer number (44217360).

Almost surely, 2^520881243 is an apocalyptic number.

520881243 is a deficient number, since it is larger than the sum of its proper divisors (186596517).

520881243 is a wasteful number, since it uses less digits than its factorization.

520881243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15106.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 520881243 is about 22822.8228534509. The cubic root of 520881243 is about 804.5991564281.

The spelling of 520881243 in words is "five hundred twenty million, eight hundred eighty-one thousand, two hundred forty-three".