561896546 has 8 divisors (see below), whose sum is σ = 892423980. Its totient is φ = 264421888.

The previous prime is 561896539. The next prime is 561896567. The reversal of 561896546 is 645698165.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 554084521 + 7812025 = 23539^2 + 2795^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 561896494 and 561896503.

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, 8263151 + ... + 8263218.

Almost surely, 2^561896546 is an apocalyptic number.

561896546 is a deficient number, since it is larger than the sum of its proper divisors (330527434).

561896546 is a wasteful number, since it uses less digits than its factorization.

561896546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16526388.

The product of its digits is 1555200, while the sum is 50.

The square root of 561896546 is about 23704.3571100336. The cubic root of 561896546 is about 825.1865123458.

The spelling of 561896546 in words is "five hundred sixty-one million, eight hundred ninety-six thousand, five hundred forty-six".