56042417 has 2 divisors, whose sum is σ = 56042418. Its totient is φ = 56042416.

The previous prime is 56042401. The next prime is 56042443. The reversal of 56042417 is 71424065.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55815841 + 226576 = 7471^2 + 476^2 .

It is a cyclic number.

It is not a de Polignac number, because 56042417 - 2⁴ = 56042401 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 56042417.

It is not a weakly prime, because it can be changed into another prime (56042447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28021208 + 28021209.

It is an arithmetic number, because the mean of its divisors is an integer number (28021209).

Almost surely, 2^56042417 is an apocalyptic number.

It is an amenable number.

56042417 is a deficient number, since it is larger than the sum of its proper divisors (1).

56042417 is an equidigital number, since it uses as much as digits as its factorization.

56042417 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 56042417 is about 7486.1483421049. The cubic root of 56042417 is about 382.6828083688.

The spelling of 56042417 in words is "fifty-six million, forty-two thousand, four hundred seventeen".