520034223634 has 4 divisors (see below), whose sum is σ = 780051335454. Its totient is φ = 260017111816.

The previous prime is 520034223619. The next prime is 520034223637. The reversal of 520034223634 is 436322430025.

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

It can be written as a sum of positive squares in only one way, i.e., 456225948025 + 63808275609 = 675445^2 + 252603^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 520034223634.

It is not an unprimeable number, because it can be changed into a prime (520034223637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130008555907 + ... + 130008555910.

Almost surely, 2^520034223634 is an apocalyptic number.

520034223634 is a deficient number, since it is larger than the sum of its proper divisors (260017111820).

520034223634 is a wasteful number, since it uses less digits than its factorization.

520034223634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260017111819.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 520034223634 its reverse (436322430025), we get a palindrome (956356653659).

The spelling of 520034223634 in words is "five hundred twenty billion, thirty-four million, two hundred twenty-three thousand, six hundred thirty-four".