56162609 has 2 divisors, whose sum is σ = 56162610. Its totient is φ = 56162608.

The previous prime is 56162599. The next prime is 56162641. The reversal of 56162609 is 90626165.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29866225 + 26296384 = 5465^2 + 5128^2 .

It is a cyclic number.

It is not a de Polignac number, because 56162609 - 2⁴ = 56162593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56162699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28081304 + 28081305.

It is an arithmetic number, because the mean of its divisors is an integer number (28081305).

Almost surely, 2^56162609 is an apocalyptic number.

It is an amenable number.

56162609 is a deficient number, since it is larger than the sum of its proper divisors (1).

56162609 is an equidigital number, since it uses as much as digits as its factorization.

56162609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 56162609 is about 7494.1716687036. The cubic root of 56162609 is about 382.9561880227.

The spelling of 56162609 in words is "fifty-six million, one hundred sixty-two thousand, six hundred nine".