522447664 has 10 divisors (see below), whose sum is σ = 1012242380. Its totient is φ = 261223824.

The previous prime is 522447637. The next prime is 522447671. The reversal of 522447664 is 466744225.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16326474 + ... + 16326505.

It is an arithmetic number, because the mean of its divisors is an integer number (101224238).

Almost surely, 2^522447664 is an apocalyptic number.

It is an amenable number.

522447664 is a deficient number, since it is larger than the sum of its proper divisors (489794716).

522447664 is a wasteful number, since it uses less digits than its factorization.

522447664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32652987 (or 32652981 counting only the distinct ones).

The product of its digits is 322560, while the sum is 40.

The square root of 522447664 is about 22857.1140785533. The cubic root of 522447664 is about 805.4048933410.

The spelling of 522447664 in words is "five hundred twenty-two million, four hundred forty-seven thousand, six hundred sixty-four".