520286361 has 72 divisors (see below), whose sum is σ = 869391360. Its totient is φ = 275607360.

The previous prime is 520286359. The next prime is 520286387. The reversal of 520286361 is 163682025.

It is not a de Polignac number, because 520286361 - 2¹ = 520286359 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520286461) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4096680 + ... + 4096806.

It is an arithmetic number, because the mean of its divisors is an integer number (12074880).

Almost surely, 2^520286361 is an apocalyptic number.

It is an amenable number.

520286361 is a deficient number, since it is larger than the sum of its proper divisors (349104999).

520286361 is a wasteful number, since it uses less digits than its factorization.

520286361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 520286361 is about 22809.7865180716. The cubic root of 520286361 is about 804.2927373282.

The spelling of 520286361 in words is "five hundred twenty million, two hundred eighty-six thousand, three hundred sixty-one".