522249626 has 4 divisors (see below), whose sum is σ = 783374442. Its totient is φ = 261124812.

The previous prime is 522249613. The next prime is 522249631. The reversal of 522249626 is 626942225.

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

It can be written as a sum of positive squares in only one way, i.e., 408080401 + 114169225 = 20201^2 + 10685^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 522249626.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 130562405 + ... + 130562408.

Almost surely, 2^522249626 is an apocalyptic number.

522249626 is a deficient number, since it is larger than the sum of its proper divisors (261124816).

522249626 is a wasteful number, since it uses less digits than its factorization.

522249626 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261124815.

The product of its digits is 103680, while the sum is 38.

The square root of 522249626 is about 22852.7815812430. The cubic root of 522249626 is about 805.3031154068.

The spelling of 522249626 in words is "five hundred twenty-two million, two hundred forty-nine thousand, six hundred twenty-six".