520461345 has 16 divisors (see below), whose sum is σ = 837728640. Its totient is φ = 275915904.

The previous prime is 520461323. The next prime is 520461349. The reversal of 520461345 is 543164025.

It is not a de Polignac number, because 520461345 - 2⁵ = 520461313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520461349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101380 + ... + 106389.

It is an arithmetic number, because the mean of its divisors is an integer number (52358040).

Almost surely, 2^520461345 is an apocalyptic number.

It is an amenable number.

520461345 is a deficient number, since it is larger than the sum of its proper divisors (317267295).

520461345 is a wasteful number, since it uses less digits than its factorization.

520461345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207944.

The product of its (nonzero) digits is 14400, while the sum is 30.

The square root of 520461345 is about 22813.6219176176. The cubic root of 520461345 is about 804.3828944647.

The spelling of 520461345 in words is "five hundred twenty million, four hundred sixty-one thousand, three hundred forty-five".