566845401 has 4 divisors (see below), whose sum is σ = 755793872. Its totient is φ = 377896932.

The previous prime is 566845387. The next prime is 566845457. The reversal of 566845401 is 104548665.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 566845401 - 2⁵ = 566845369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 566845401.

It is not an unprimeable number, because it can be changed into a prime (566845801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94474231 + ... + 94474236.

It is an arithmetic number, because the mean of its divisors is an integer number (188948468).

Almost surely, 2^566845401 is an apocalyptic number.

It is an amenable number.

566845401 is a deficient number, since it is larger than the sum of its proper divisors (188948471).

566845401 is a wasteful number, since it uses less digits than its factorization.

566845401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188948470.

The product of its (nonzero) digits is 115200, while the sum is 39.

The square root of 566845401 is about 23808.5153044032. The cubic root of 566845401 is about 827.6020208702.

The spelling of 566845401 in words is "five hundred sixty-six million, eight hundred forty-five thousand, four hundred one".