520287855243 has 8 divisors (see below), whose sum is σ = 747079997328. Its totient is φ = 320177141664.

The previous prime is 520287855211. The next prime is 520287855253. The reversal of 520287855243 is 342558782025.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 520287855243 - 2⁵ = 520287855211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (520287855253) 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, 6670357080 + ... + 6670357157.

It is an arithmetic number, because the mean of its divisors is an integer number (93384999666).

Almost surely, 2^520287855243 is an apocalyptic number.

520287855243 is a deficient number, since it is larger than the sum of its proper divisors (226792142085).

520287855243 is a wasteful number, since it uses less digits than its factorization.

520287855243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13340714253.

The product of its (nonzero) digits is 5376000, while the sum is 51.

The spelling of 520287855243 in words is "five hundred twenty billion, two hundred eighty-seven million, eight hundred fifty-five thousand, two hundred forty-three".