520540534214455 has 4 divisors (see below), whose sum is σ = 624648641057352. Its totient is φ = 416432427371560.

The previous prime is 520540534214453. The next prime is 520540534214531. The reversal of 520540534214455 is 554412435045025.

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

It is not a de Polignac number, because 520540534214455 - 2¹ = 520540534214453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 520540534214399 and 520540534214408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520540534214453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52054053421441 + ... + 52054053421450.

It is an arithmetic number, because the mean of its divisors is an integer number (156162160264338).

Almost surely, 2^{520540534214455} is an apocalyptic number.

520540534214455 is a deficient number, since it is larger than the sum of its proper divisors (104108106842897).

520540534214455 is a wasteful number, since it uses less digits than its factorization.

520540534214455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104108106842896.

The product of its (nonzero) digits is 9600000, while the sum is 49.

The spelling of 520540534214455 in words is "five hundred twenty trillion, five hundred forty billion, five hundred thirty-four million, two hundred fourteen thousand, four hundred fifty-five".