525223404262663 has 4 divisors (see below), whose sum is σ = 525223474394328. Its totient is φ = 525223334131000.

The previous prime is 525223404262651. The next prime is 525223404262679. The reversal of 525223404262663 is 366262404322525.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525223404262663 is a prime.

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 525223404262663.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (525223404262643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22277581 + ... + 39328582.

It is an arithmetic number, because the mean of its divisors is an integer number (131305868598582).

Almost surely, 2^{525223404262663} is an apocalyptic number.

525223404262663 is a deficient number, since it is larger than the sum of its proper divisors (70131665).

525223404262663 is an equidigital number, since it uses as much as digits as its factorization.

525223404262663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70131664.

The product of its (nonzero) digits is 24883200, while the sum is 52.

The spelling of 525223404262663 in words is "five hundred twenty-five trillion, two hundred twenty-three billion, four hundred four million, two hundred sixty-two thousand, six hundred sixty-three".