561472811 has 2 divisors, whose sum is σ = 561472812. Its totient is φ = 561472810.

The previous prime is 561472759. The next prime is 561472841. The reversal of 561472811 is 118274165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561472811 - 2¹⁸ = 561210667 is a prime.

It is not a weakly prime, because it can be changed into another prime (561472841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280736405 + 280736406.

It is an arithmetic number, because the mean of its divisors is an integer number (280736406).

Almost surely, 2^561472811 is an apocalyptic number.

561472811 is a deficient number, since it is larger than the sum of its proper divisors (1).

561472811 is an equidigital number, since it uses as much as digits as its factorization.

561472811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13440, while the sum is 35.

The square root of 561472811 is about 23695.4175105652. The cubic root of 561472811 is about 824.9790314842.

The spelling of 561472811 in words is "five hundred sixty-one million, four hundred seventy-two thousand, eight hundred eleven".