520505332 has 12 divisors (see below), whose sum is σ = 933101316. Its totient is φ = 253904960.

The previous prime is 520505317. The next prime is 520505347. The reversal of 520505332 is 233505025.

It is an interprime number because it is at equal distance from previous prime (520505317) and next prime (520505347).

It can be written as a sum of positive squares in 2 ways, for example, as 240746256 + 279759076 = 15516^2 + 16726^2 .

It is a junction number, because it is equal to n+sod(n) for n = 520505297 and 520505306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1586743 + ... + 1587070.

It is an arithmetic number, because the mean of its divisors is an integer number (77758443).

Almost surely, 2^520505332 is an apocalyptic number.

It is an amenable number.

520505332 is a deficient number, since it is larger than the sum of its proper divisors (412595984).

520505332 is a wasteful number, since it uses less digits than its factorization.

520505332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173858 (or 3173856 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 25.

The square root of 520505332 is about 22814.5859484673. The cubic root of 520505332 is about 804.4055547410.

The spelling of 520505332 in words is "five hundred twenty million, five hundred five thousand, three hundred thirty-two".