560948981 has 4 divisors (see below), whose sum is σ = 561245964. Its totient is φ = 560652000.

The previous prime is 560948977. The next prime is 560949023. The reversal of 560948981 is 189849065.

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 2 ways, for example, as 301577956 + 259371025 = 17366^2 + 16105^2 .

It is a cyclic number.

It is not a de Polignac number, because 560948981 - 2² = 560948977 is a prime.

It is a super-2 number, since 2×560948981² = 629327518569876722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (560948581) 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, 145640 + ... + 149441.

It is an arithmetic number, because the mean of its divisors is an integer number (140311491).

Almost surely, 2^560948981 is an apocalyptic number.

It is an amenable number.

560948981 is a deficient number, since it is larger than the sum of its proper divisors (296983).

560948981 is a wasteful number, since it uses less digits than its factorization.

560948981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296982.

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 560948981 is about 23684.3615282321. The cubic root of 560948981 is about 824.7223949981.

The spelling of 560948981 in words is "five hundred sixty million, nine hundred forty-eight thousand, nine hundred eighty-one".