561652466 has 4 divisors (see below), whose sum is σ = 842478702. Its totient is φ = 280826232.

The previous prime is 561652463. The next prime is 561652471. The reversal of 561652466 is 664256165.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 421111441 + 140541025 = 20521^2 + 11855^2 .

It is not an unprimeable number, because it can be changed into a prime (561652463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140413115 + ... + 140413118.

Almost surely, 2^561652466 is an apocalyptic number.

561652466 is a deficient number, since it is larger than the sum of its proper divisors (280826236).

561652466 is a wasteful number, since it uses less digits than its factorization.

561652466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280826235.

The product of its digits is 259200, while the sum is 41.

The square root of 561652466 is about 23699.2081302308. The cubic root of 561652466 is about 825.0670118815.

The spelling of 561652466 in words is "five hundred sixty-one million, six hundred fifty-two thousand, four hundred sixty-six".