522521051054545 has 8 divisors (see below), whose sum is σ = 627025384123560. Its totient is φ = 418016758938240.

The previous prime is 522521051054467. The next prime is 522521051054557. The reversal of 522521051054545 is 545450150125225.

It can be written as a sum of positive squares in 4 ways, for example, as 36082499210641 + 486438551843904 = 6006871^2 + 22055352^2 .

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

It is not a de Polignac number, because 522521051054545 - 2²⁵ = 522521017500113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 522521051054495 and 522521051054504.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42979941 + ... + 53780269.

It is an arithmetic number, because the mean of its divisors is an integer number (78378173015445).

Almost surely, 2^{522521051054545} is an apocalyptic number.

It is an amenable number.

522521051054545 is a deficient number, since it is larger than the sum of its proper divisors (104504333069015).

522521051054545 is a wasteful number, since it uses less digits than its factorization.

522521051054545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20476355.

The product of its (nonzero) digits is 2000000, while the sum is 46.

The spelling of 522521051054545 in words is "five hundred twenty-two trillion, five hundred twenty-one billion, fifty-one million, fifty-four thousand, five hundred forty-five".