413556561 has 12 divisors (see below), whose sum is σ = 651665040. Its totient is φ = 250640280.

The previous prime is 413556551. The next prime is 413556587. The reversal of 413556561 is 165655314.

413556561 is a `hidden beast` number, since 4 + 1 + 35 + 565 + 61 = 666.

It is not a de Polignac number, because 413556561 - 2¹⁴ = 413540177 is a prime.

It is a super-2 number, since 2×413556561² = 342058058292293442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (413556541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2088571 + ... + 2088768.

It is an arithmetic number, because the mean of its divisors is an integer number (54305420).

Almost surely, 2^413556561 is an apocalyptic number.

It is an amenable number.

413556561 is a deficient number, since it is larger than the sum of its proper divisors (238108479).

413556561 is a wasteful number, since it uses less digits than its factorization.

413556561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4177356 (or 4177353 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The square root of 413556561 is about 20336.0901109333. The cubic root of 413556561 is about 745.0377957793.

The spelling of 413556561 in words is "four hundred thirteen million, five hundred fifty-six thousand, five hundred sixty-one".