561814996 has 12 divisors (see below), whose sum is σ = 986652352. Its totient is φ = 279914328.

The previous prime is 561814991. The next prime is 561815003. The reversal of 561814996 is 699418165.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561814991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247020 + ... + 249283.

Almost surely, 2^561814996 is an apocalyptic number.

It is an amenable number.

561814996 is a deficient number, since it is larger than the sum of its proper divisors (424837356).

561814996 is a wasteful number, since it uses less digits than its factorization.

561814996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496590 (or 496588 counting only the distinct ones).

The product of its digits is 466560, while the sum is 49.

The square root of 561814996 is about 23702.6368997207. The cubic root of 561814996 is about 825.1465896848.

The spelling of 561814996 in words is "five hundred sixty-one million, eight hundred fourteen thousand, nine hundred ninety-six".