56196409 has 2 divisors, whose sum is σ = 56196410. Its totient is φ = 56196408.

The previous prime is 56196359. The next prime is 56196419. The reversal of 56196409 is 90469165.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49744809 + 6451600 = 7053^2 + 2540^2 .

It is a cyclic number.

It is not a de Polignac number, because 56196409 - 2¹³ = 56188217 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (56196419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28098204 + 28098205.

It is an arithmetic number, because the mean of its divisors is an integer number (28098205).

Almost surely, 2^56196409 is an apocalyptic number.

It is an amenable number.

56196409 is a deficient number, since it is larger than the sum of its proper divisors (1).

56196409 is an equidigital number, since it uses as much as digits as its factorization.

56196409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 56196409 is about 7496.4264152995. The cubic root of 56196409 is about 383.0329966777.

The spelling of 56196409 in words is "fifty-six million, one hundred ninety-six thousand, four hundred nine".