56566441 has 2 divisors, whose sum is σ = 56566442. Its totient is φ = 56566440.

The previous prime is 56566399. The next prime is 56566469. The reversal of 56566441 is 14466565.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46294416 + 10272025 = 6804^2 + 3205^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-56566441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56566441.

It is not a weakly prime, because it can be changed into another prime (56566841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28283220 + 28283221.

It is an arithmetic number, because the mean of its divisors is an integer number (28283221).

Almost surely, 2^56566441 is an apocalyptic number.

It is an amenable number.

56566441 is a deficient number, since it is larger than the sum of its proper divisors (1).

56566441 is an equidigital number, since it uses as much as digits as its factorization.

56566441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 86400, while the sum is 37.

The square root of 56566441 is about 7521.0664802274. The cubic root of 56566441 is about 383.8718670621.

The spelling of 56566441 in words is "fifty-six million, five hundred sixty-six thousand, four hundred forty-one".