522282478 has 4 divisors (see below), whose sum is σ = 783423720. Its totient is φ = 261141238.

The previous prime is 522282437. The next prime is 522282493. The reversal of 522282478 is 874282225.

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

It is a self number, because there is not a number n which added to its sum of digits gives 522282478.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130570618 + ... + 130570621.

It is an arithmetic number, because the mean of its divisors is an integer number (195855930).

Almost surely, 2^522282478 is an apocalyptic number.

522282478 is a deficient number, since it is larger than the sum of its proper divisors (261141242).

522282478 is a wasteful number, since it uses less digits than its factorization.

522282478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261141241.

The product of its digits is 143360, while the sum is 40.

The square root of 522282478 is about 22853.5003445862. The cubic root of 522282478 is about 805.3200008590.

The spelling of 522282478 in words is "five hundred twenty-two million, two hundred eighty-two thousand, four hundred seventy-eight".