561310272 has 42 divisors (see below), whose sum is σ = 1608896198. Its totient is φ = 187103232.

The previous prime is 561310271. The next prime is 561310279. The reversal of 561310272 is 272013165.

It is a happy number.

561310272 is a `hidden beast` number, since 561 + 31 + 0 + 2 + 72 = 666.

It can be written as a sum of positive squares in only one way, i.e., 557715456 + 3594816 = 23616^2 + 1896^2 .

It is not an unprimeable number, because it can be changed into a prime (561310271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 486673 + ... + 487824.

Almost surely, 2^561310272 is an apocalyptic number.

It is an amenable number.

561310272 is an abundant number, since it is smaller than the sum of its proper divisors (1047585926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561310272 is a wasteful number, since it uses less digits than its factorization.

561310272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 974515 (or 974502 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 561310272 is about 23691.9875063280. The cubic root of 561310272 is about 824.8994169386.

The spelling of 561310272 in words is "five hundred sixty-one million, three hundred ten thousand, two hundred seventy-two".