566472421 has 4 divisors (see below), whose sum is σ = 566957344. Its totient is φ = 565987500.

The previous prime is 566472397. The next prime is 566472437. The reversal of 566472421 is 124274665.

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 a cyclic number.

It is not a de Polignac number, because 566472421 - 2²¹ = 564375269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (566478421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 240705 + ... + 243046.

It is an arithmetic number, because the mean of its divisors is an integer number (141739336).

Almost surely, 2^566472421 is an apocalyptic number.

It is an amenable number.

566472421 is a deficient number, since it is larger than the sum of its proper divisors (484923).

566472421 is a wasteful number, since it uses less digits than its factorization.

566472421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484922.

The product of its digits is 80640, while the sum is 37.

The square root of 566472421 is about 23800.6811036995. The cubic root of 566472421 is about 827.4204624130.

The spelling of 566472421 in words is "five hundred sixty-six million, four hundred seventy-two thousand, four hundred twenty-one".