520215334 has 32 divisors (see below), whose sum is σ = 865702080. Its totient is φ = 233198592.

The previous prime is 520215313. The next prime is 520215337. The reversal of 520215334 is 433512025.

It is a junction number, because it is equal to n+sod(n) for n = 520215299 and 520215308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520215337) 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, 209122 + ... + 211594.

It is an arithmetic number, because the mean of its divisors is an integer number (27053190).

Almost surely, 2^520215334 is an apocalyptic number.

520215334 is a deficient number, since it is larger than the sum of its proper divisors (345486746).

520215334 is a wasteful number, since it uses less digits than its factorization.

520215334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2784.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 520215334 is about 22808.2295235733. The cubic root of 520215334 is about 804.2561362662.

Adding to 520215334 its reverse (433512025), we get a palindrome (953727359).

The spelling of 520215334 in words is "five hundred twenty million, two hundred fifteen thousand, three hundred thirty-four".