561265241 has 4 divisors (see below), whose sum is σ = 561445632. Its totient is φ = 561084852.

The previous prime is 561265223. The next prime is 561265249. The reversal of 561265241 is 142562165.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-561265241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 561265198 and 561265207.

It is not an unprimeable number, because it can be changed into a prime (561265249) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85445 + ... + 91778.

It is an arithmetic number, because the mean of its divisors is an integer number (140361408).

Almost surely, 2^561265241 is an apocalyptic number.

It is an amenable number.

561265241 is a deficient number, since it is larger than the sum of its proper divisors (180391).

561265241 is a wasteful number, since it uses less digits than its factorization.

561265241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180390.

The product of its digits is 14400, while the sum is 32.

The square root of 561265241 is about 23691.0371448782. The cubic root of 561265241 is about 824.8773572206.

The spelling of 561265241 in words is "five hundred sixty-one million, two hundred sixty-five thousand, two hundred forty-one".