522221525 has 36 divisors (see below), whose sum is σ = 751478688. Its totient is φ = 352623840.

The previous prime is 522221489. The next prime is 522221533. The reversal of 522221525 is 525122225.

522221525 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 522221525 - 2¹² = 522217429 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 522221494 and 522221503.

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 in 35 ways as a sum of consecutive naturals, for example, 3126992 + ... + 3127158.

It is an arithmetic number, because the mean of its divisors is an integer number (20874408).

Almost surely, 2^522221525 is an apocalyptic number.

It is an amenable number.

522221525 is a deficient number, since it is larger than the sum of its proper divisors (229257163).

522221525 is a wasteful number, since it uses less digits than its factorization.

522221525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 286 counting only the distinct ones).

The product of its digits is 4000, while the sum is 26.

The square root of 522221525 is about 22852.1667462847. The cubic root of 522221525 is about 805.2886713379.

The spelling of 522221525 in words is "five hundred twenty-two million, two hundred twenty-one thousand, five hundred twenty-five".