520443105 has 96 divisors (see below), whose sum is σ = 1042836480. Its totient is φ = 217002240.

The previous prime is 520443101. The next prime is 520443107. The reversal of 520443105 is 501344025.

520443105 = 1936² + 1937² + ... + 2065².

It is not a de Polignac number, because 520443105 - 2² = 520443101 is a prime.

It is a super-2 number, since 2×520443105² = 541722051084082050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (520443101) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2466450 + ... + 2466660.

It is an arithmetic number, because the mean of its divisors is an integer number (10862880).

Almost surely, 2^520443105 is an apocalyptic number.

It is an amenable number.

520443105 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

520443105 is a wasteful number, since it uses less digits than its factorization.

520443105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 520443105 is about 22813.2221529533. Note that the first 3 decimals coincide. The cubic root of 520443105 is about 804.3734975995.

The spelling of 520443105 in words is "five hundred twenty million, four hundred forty-three thousand, one hundred five".