561478322 has 4 divisors (see below), whose sum is σ = 842217486. Its totient is φ = 280739160.

The previous prime is 561478319. The next prime is 561478331. The reversal of 561478322 is 223874165.

It is a happy number.

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., 390418081 + 171060241 = 19759^2 + 13079^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 140369579 + ... + 140369582.

Almost surely, 2^561478322 is an apocalyptic number.

561478322 is a deficient number, since it is larger than the sum of its proper divisors (280739164).

561478322 is a wasteful number, since it uses less digits than its factorization.

561478322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280739163.

The product of its digits is 80640, while the sum is 38.

The square root of 561478322 is about 23695.5337985874. The cubic root of 561478322 is about 824.9817306025.

The spelling of 561478322 in words is "five hundred sixty-one million, four hundred seventy-eight thousand, three hundred twenty-two".