522266661 has 24 divisors (see below), whose sum is σ = 907533120. Its totient is φ = 282730176.

The previous prime is 522266659. The next prime is 522266663. The reversal of 522266661 is 166662225.

It is an interprime number because it is at equal distance from previous prime (522266659) and next prime (522266663).

It is not a de Polignac number, because 522266661 - 2¹ = 522266659 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (522266663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216960 + ... + 219353.

It is an arithmetic number, because the mean of its divisors is an integer number (37813880).

Almost surely, 2^522266661 is an apocalyptic number.

It is an amenable number.

522266661 is a deficient number, since it is larger than the sum of its proper divisors (385266459).

522266661 is a wasteful number, since it uses less digits than its factorization.

522266661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 436345 (or 436342 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 522266661 is about 22853.1542899443. The cubic root of 522266661 is about 805.3118712385.

The spelling of 522266661 in words is "five hundred twenty-two million, two hundred sixty-six thousand, six hundred sixty-one".