520474351 has 4 divisors (see below), whose sum is σ = 523090000. Its totient is φ = 517858704.

The previous prime is 520474343. The next prime is 520474373. The reversal of 520474351 is 153474025.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 520474351 - 2³ = 520474343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520474051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1307526 + ... + 1307923.

It is an arithmetic number, because the mean of its divisors is an integer number (130772500).

Almost surely, 2^520474351 is an apocalyptic number.

520474351 is a deficient number, since it is larger than the sum of its proper divisors (2615649).

520474351 is a wasteful number, since it uses less digits than its factorization.

520474351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2615648.

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 520474351 is about 22813.9069648318. The cubic root of 520474351 is about 804.3895947489.

The spelling of 520474351 in words is "five hundred twenty million, four hundred seventy-four thousand, three hundred fifty-one".