520169332 has 24 divisors (see below), whose sum is σ = 964542600. Its totient is φ = 244608000.

The previous prime is 520169329. The next prime is 520169333. The reversal of 520169332 is 233961025.

It can be written as a sum of positive squares in 4 ways, for example, as 274432356 + 245736976 = 16566^2 + 15676^2 .

It is a super-2 number, since 2×520169332² = 541152267906652448, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 520169294 and 520169303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520169333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171832 + ... + 174832.

It is an arithmetic number, because the mean of its divisors is an integer number (40189275).

Almost surely, 2^520169332 is an apocalyptic number.

It is an amenable number.

520169332 is a deficient number, since it is larger than the sum of its proper divisors (444373268).

520169332 is a wasteful number, since it uses less digits than its factorization.

520169332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5571 (or 5569 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 31.

The square root of 520169332 is about 22807.2210494834. The cubic root of 520169332 is about 804.2324291082.

The spelling of 520169332 in words is "five hundred twenty million, one hundred sixty-nine thousand, three hundred thirty-two".