522419821 has 12 divisors (see below), whose sum is σ = 662960160. Its totient is φ = 407079960.

The previous prime is 522419819. The next prime is 522419831. The reversal of 522419821 is 128914225.

It is not a de Polignac number, because 522419821 - 2¹ = 522419819 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522419831) 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 11 ways as a sum of consecutive naturals, for example, 484081 + ... + 485158.

It is an arithmetic number, because the mean of its divisors is an integer number (55246680).

Almost surely, 2^522419821 is an apocalyptic number.

It is an amenable number.

522419821 is a deficient number, since it is larger than the sum of its proper divisors (140540339).

522419821 is a wasteful number, since it uses less digits than its factorization.

522419821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969264 (or 969257 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The square root of 522419821 is about 22856.5050040464. The cubic root of 522419821 is about 805.3905855048.

The spelling of 522419821 in words is "five hundred twenty-two million, four hundred nineteen thousand, eight hundred twenty-one".