561648532 has 12 divisors (see below), whose sum is σ = 983051776. Its totient is φ = 280776600.

The previous prime is 561648511. The next prime is 561648541. The reversal of 561648532 is 235846165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36013 + ... + 49195.

Almost surely, 2^561648532 is an apocalyptic number.

It is an amenable number.

561648532 is a deficient number, since it is larger than the sum of its proper divisors (421403244).

561648532 is a wasteful number, since it uses less digits than its factorization.

561648532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23838 (or 23836 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 561648532 is about 23699.1251315318. The cubic root of 561648532 is about 825.0650855294.

The spelling of 561648532 in words is "five hundred sixty-one million, six hundred forty-eight thousand, five hundred thirty-two".