563273644 has 12 divisors (see below), whose sum is σ = 1012370464. Its totient is φ = 274024944.

The previous prime is 563273603. The next prime is 563273651. The reversal of 563273644 is 446372365.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 563273597 and 563273606.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1902804 + ... + 1903099.

Almost surely, 2^563273644 is an apocalyptic number.

It is an amenable number.

563273644 is a deficient number, since it is larger than the sum of its proper divisors (449096820).

563273644 is a wasteful number, since it uses less digits than its factorization.

563273644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3805944 (or 3805942 counting only the distinct ones).

The product of its digits is 362880, while the sum is 40.

The square root of 563273644 is about 23733.3866946966. The cubic root of 563273644 is about 825.8600857001.

The spelling of 563273644 in words is "five hundred sixty-three million, two hundred seventy-three thousand, six hundred forty-four".