564238661055 has 16 divisors (see below), whose sum is σ = 902808821760. Its totient is φ = 300918297888.

The previous prime is 564238661029. The next prime is 564238661057. The reversal of 564238661055 is 550166832465.

It is not a de Polignac number, because 564238661055 - 2⁷ = 564238660927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 564238660989 and 564238661007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564238661057) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26335 + ... + 1062624.

It is an arithmetic number, because the mean of its divisors is an integer number (56425551360).

Almost surely, 2^564238661055 is an apocalyptic number.

564238661055 is a deficient number, since it is larger than the sum of its proper divisors (338570160705).

564238661055 is a wasteful number, since it uses less digits than its factorization.

564238661055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1123510.

The product of its (nonzero) digits is 5184000, while the sum is 51.

The spelling of 564238661055 in words is "five hundred sixty-four billion, two hundred thirty-eight million, six hundred sixty-one thousand, fifty-five".