525303066217 has 4 divisors (see below), whose sum is σ = 526197961296. Its totient is φ = 524408171140.

The previous prime is 525303066199. The next prime is 525303066329. The reversal of 525303066217 is 712660303525.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 525303066217 - 2¹⁵ = 525303033449 is a prime.

It is a super-2 number, since 2×525303066217² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 525303066217.

It is not an unprimeable number, because it can be changed into a prime (525333066217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447446659 + ... + 447447832.

It is an arithmetic number, because the mean of its divisors is an integer number (131549490324).

Almost surely, 2^525303066217 is an apocalyptic number.

It is an amenable number.

525303066217 is a deficient number, since it is larger than the sum of its proper divisors (894895079).

525303066217 is an equidigital number, since it uses as much as digits as its factorization.

525303066217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 894895078.

The product of its (nonzero) digits is 226800, while the sum is 40.

The spelling of 525303066217 in words is "five hundred twenty-five billion, three hundred three million, sixty-six thousand, two hundred seventeen".