520012545512551 has 64 divisors (see below), whose sum is σ = 668092712878080. Its totient is φ = 393871419227520.

The previous prime is 520012545512479. The next prime is 520012545512563. The reversal of 520012545512551 is 155215545210025.

It is not a de Polignac number, because 520012545512551 - 2²³ = 520012537123943 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 520012545512498 and 520012545512507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (520012545512051) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 28961746 + ... + 43345216.

It is an arithmetic number, because the mean of its divisors is an integer number (10438948638720).

Almost surely, 2^{520012545512551} is an apocalyptic number.

520012545512551 is a deficient number, since it is larger than the sum of its proper divisors (148080167365529).

520012545512551 is a wasteful number, since it uses less digits than its factorization.

520012545512551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14383724.

The product of its (nonzero) digits is 500000, while the sum is 43.

The spelling of 520012545512551 in words is "five hundred twenty trillion, twelve billion, five hundred forty-five million, five hundred twelve thousand, five hundred fifty-one".