561475027 has 2 divisors, whose sum is σ = 561475028. Its totient is φ = 561475026.

The previous prime is 561474983. The next prime is 561475043. The reversal of 561475027 is 720574165.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 561475027 - 2⁷ = 561474899 is a prime.

It is not a weakly prime, because it can be changed into another prime (561475087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280737513 + 280737514.

It is an arithmetic number, because the mean of its divisors is an integer number (280737514).

Almost surely, 2^561475027 is an apocalyptic number.

561475027 is a deficient number, since it is larger than the sum of its proper divisors (1).

561475027 is an equidigital number, since it uses as much as digits as its factorization.

561475027 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 561475027 is about 23695.4642706152. The cubic root of 561475027 is about 824.9801168150.

The spelling of 561475027 in words is "five hundred sixty-one million, four hundred seventy-five thousand, twenty-seven".