520340510534 has 32 divisors (see below), whose sum is σ = 877820013504. Its totient is φ = 229525845120.

The previous prime is 520340510531. The next prime is 520340510567. The reversal of 520340510534 is 435015043025.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 520340510534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520340510531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 366704 + ... + 1084044.

It is an arithmetic number, because the mean of its divisors is an integer number (27431875422).

Almost surely, 2^520340510534 is an apocalyptic number.

520340510534 is a deficient number, since it is larger than the sum of its proper divisors (357479502970).

520340510534 is a wasteful number, since it uses less digits than its factorization.

520340510534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718592.

The product of its (nonzero) digits is 36000, while the sum is 32.

Adding to 520340510534 its reverse (435015043025), we get a palindrome (955355553559).

The spelling of 520340510534 in words is "five hundred twenty billion, three hundred forty million, five hundred ten thousand, five hundred thirty-four".