55704247 has 2 divisors, whose sum is σ = 55704248. Its totient is φ = 55704246.

The previous prime is 55704217. The next prime is 55704293. The reversal of 55704247 is 74240755.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55704247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55704217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27852123 + 27852124.

It is an arithmetic number, because the mean of its divisors is an integer number (27852124).

Almost surely, 2^55704247 is an apocalyptic number.

55704247 is a deficient number, since it is larger than the sum of its proper divisors (1).

55704247 is an equidigital number, since it uses as much as digits as its factorization.

55704247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39200, while the sum is 34.

The square root of 55704247 is about 7463.5277851697. The cubic root of 55704247 is about 381.9115293598.

The spelling of 55704247 in words is "fifty-five million, seven hundred four thousand, two hundred forty-seven".