561065672 has 8 divisors (see below), whose sum is σ = 1051998150. Its totient is φ = 280532832.

The previous prime is 561065651. The next prime is 561065693. The reversal of 561065672 is 276560165.

It is an interprime number because it is at equal distance from previous prime (561065651) and next prime (561065693).

It can be written as a sum of positive squares in only one way, i.e., 318765316 + 242300356 = 17854^2 + 15566^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×561065672³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 35066597 + ... + 35066612.

Almost surely, 2^561065672 is an apocalyptic number.

It is an amenable number.

561065672 is a deficient number, since it is larger than the sum of its proper divisors (490932478).

561065672 is a wasteful number, since it uses less digits than its factorization.

561065672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70133215 (or 70133211 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 561065672 is about 23686.8248610910. The cubic root of 561065672 is about 824.7795784567.

The spelling of 561065672 in words is "five hundred sixty-one million, sixty-five thousand, six hundred seventy-two".