520350345 has 32 divisors (see below), whose sum is σ = 954915840. Its totient is φ = 268565760.

The previous prime is 520350319. The next prime is 520350349. The reversal of 520350345 is 543053025.

It is not a de Polignac number, because 520350345 - 2¹² = 520346249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (520350349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57984 + ... + 66353.

It is an arithmetic number, because the mean of its divisors is an integer number (29841120).

Almost surely, 2^520350345 is an apocalyptic number.

It is an amenable number.

520350345 is a deficient number, since it is larger than the sum of its proper divisors (434565495).

520350345 is a wasteful number, since it uses less digits than its factorization.

520350345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124382 (or 124376 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 520350345 is about 22811.1890308243. The cubic root of 520350345 is about 804.3257061962.

The spelling of 520350345 in words is "five hundred twenty million, three hundred fifty thousand, three hundred forty-five".