520865877 has 16 divisors (see below), whose sum is σ = 804575360. Its totient is φ = 293559552.

The previous prime is 520865861. The next prime is 520865879. The reversal of 520865877 is 778568025.

It is not a de Polignac number, because 520865877 - 2⁴ = 520865861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520865879) 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, 168352 + ... + 171417.

It is an arithmetic number, because the mean of its divisors is an integer number (50285960).

Almost surely, 2^520865877 is an apocalyptic number.

It is an amenable number.

520865877 is a deficient number, since it is larger than the sum of its proper divisors (283709483).

520865877 is a wasteful number, since it uses less digits than its factorization.

520865877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339852.

The product of its (nonzero) digits is 940800, while the sum is 48.

The square root of 520865877 is about 22822.4862142581. The cubic root of 520865877 is about 804.5912444569.

The spelling of 520865877 in words is "five hundred twenty million, eight hundred sixty-five thousand, eight hundred seventy-seven".