560640261 has 8 divisors (see below), whose sum is σ = 749525920. Its totient is φ = 372757392.

The previous prime is 560640253. The next prime is 560640271. The reversal of 560640261 is 162046065.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 560640261 - 2³ = 560640253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (560640251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 249391 + ... + 251628.

It is an arithmetic number, because the mean of its divisors is an integer number (93690740).

Almost surely, 2^560640261 is an apocalyptic number.

It is an amenable number.

560640261 is a deficient number, since it is larger than the sum of its proper divisors (188885659).

560640261 is a wasteful number, since it uses less digits than its factorization.

560640261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501395.

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 560640261 is about 23677.8432506003. The cubic root of 560640261 is about 824.5710710638.

The spelling of 560640261 in words is "five hundred sixty million, six hundred forty thousand, two hundred sixty-one".