561722956033 has 4 divisors (see below), whose sum is σ = 591287322160. Its totient is φ = 532158589908.

The previous prime is 561722956031. The next prime is 561722956061. The reversal of 561722956033 is 330659227165.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 330659227165 = 5 ⋅66131845433.

It is a cyclic number.

It is not a de Polignac number, because 561722956033 - 2¹ = 561722956031 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561722956031) by changing a digit.

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, 14782183035 + ... + 14782183072.

It is an arithmetic number, because the mean of its divisors is an integer number (147821830540).

Almost surely, 2^561722956033 is an apocalyptic number.

It is an amenable number.

561722956033 is a deficient number, since it is larger than the sum of its proper divisors (29564366127).

561722956033 is a wasteful number, since it uses less digits than its factorization.

561722956033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29564366126.

The product of its (nonzero) digits is 2041200, while the sum is 49.

The spelling of 561722956033 in words is "five hundred sixty-one billion, seven hundred twenty-two million, nine hundred fifty-six thousand, thirty-three".